The correct answer is (d) zero. When a conductor is placed in an electric field, free electrons within it redistribute to cancel the external field inside. This results in electrostatic equilibrium, where the net electric field inside the conductor becomes zero. This phenomenon ensures no electric fRead more
The correct answer is (d) zero.
When a conductor is placed in an electric field, free electrons within it redistribute to cancel the external field inside. This results in electrostatic equilibrium, where the net electric field inside the conductor becomes zero. This phenomenon ensures no electric force acts on charges within the conductor.
The potential difference (ΔV) in a uniform electric field is given by: ΔV = − E⋅d. where: E=100N/C (electric field strength) d = 5 cm = 0.05 m (displacement in the field direction) ΔV = −(100×0.05) ΔV = −5 V Since the question asks for the decrease in potential, the answer is: (c) 5 V For more visitRead more
The potential difference (ΔV) in a uniform electric field is given by:
ΔV = − E⋅d.
where:
E=100N/C (electric field strength)
d = 5 cm = 0.05 m (displacement in the field direction)
ΔV = −(100×0.05)
ΔV = −5 V
Since the question asks for the decrease in potential, the answer is: (c) 5 V
(b) k = 1 The capacitance of a capacitor is a property of the capacitor itself and does not change when the charge is altered. The capacitance is related to the physical characteristics of the capacitor, such as the area of the plates and the distance between them, not the amount of charge stored. TRead more
(b) k = 1
The capacitance of a capacitor is a property of the capacitor itself and does not change when the charge is altered. The capacitance is related to the physical characteristics of the capacitor, such as the area of the plates and the distance between them, not the amount of charge stored. Therefore, the capacitance remains the same, so k = 1.
(c) 711 µ F The electrical capacity of the Earth is approximately 711 microfarads (µF). This is based on the Earth acting as a large spherical conductor, and the value is derived from the Earth's surface area and the electric potential of the Earth. For more visit here: https://www.tiwariacademy.comRead more
(c) 711 µ F
The electrical capacity of the Earth is approximately 711 microfarads (µF). This is based on the Earth acting as a large spherical conductor, and the value is derived from the Earth’s surface area and the electric potential of the Earth.
When two capacitors at different potentials are connected by a conducting wire, charge redistributes until they reach a common potential. The charge lost by one equals the charge gained by the other, but potential change depends on capacitance. Some energy is lost as heat due to charge redistributioRead more
When two capacitors at different potentials are connected by a conducting wire, charge redistributes until they reach a common potential. The charge lost by one equals the charge gained by the other, but potential change depends on capacitance. Some energy is lost as heat due to charge redistribution.
The correct answer is (b) 4. The energy stored in a capacitor is given by U = (1/2) C V². When the potential V is doubled, the new energy becomes U' = (1/2) C (2V)² = (1/2) C × 4V² = 4U. Thus, the energy stored in the capacitor increases 4 times its initial value. For more visit here: https://www.tiRead more
The correct answer is (b) 4.
The energy stored in a capacitor is given by U = (1/2) C V². When the potential V is doubled, the new energy becomes U’ = (1/2) C (2V)² = (1/2) C × 4V² = 4U. Thus, the energy stored in the capacitor increases 4 times its initial value.
The correct answer is: (a) increases When capacitors are connected in parallel, their total capacitance is the sum of their individual capacitances: Ceq = C₁ + C₂ + C₃ +… This increases the overall capacitance, allowing the system to store more charge at the same voltage. For more visit here: https:Read more
The correct answer is: (a) increases
When capacitors are connected in parallel, their total capacitance is the sum of their individual capacitances: Ceq = C₁ + C₂ + C₃ +…
This increases the overall capacitance, allowing the system to store more charge at the same voltage.
The correct answer is: (c) charge When capacitors are connected in series, the same charge flows through each capacitor. However, the potential difference across each capacitor may vary depending on its capacitance, while the total capacitance is less than the smallest individual capacitor in the seRead more
The correct answer is:
(c) charge
When capacitors are connected in series, the same charge flows through each capacitor. However, the potential difference across each capacitor may vary depending on its capacitance, while the total capacitance is less than the smallest individual capacitor in the series.
When air is replaced by mica, which has a dielectric constant of 6, the capacitance of the capacitor increases by a factor of 6. This is because the capacitance is directly proportional to the dielectric constant of the material between the plates. Thus, replacing air with mica increases the capacitRead more
When air is replaced by mica, which has a dielectric constant of 6, the capacitance of the capacitor increases by a factor of 6. This is because the capacitance is directly proportional to the dielectric constant of the material between the plates. Thus, replacing air with mica increases the capacitance sixfold.
When a conductor is held in an electric field, the field inside the conductor is always
The correct answer is (d) zero. When a conductor is placed in an electric field, free electrons within it redistribute to cancel the external field inside. This results in electrostatic equilibrium, where the net electric field inside the conductor becomes zero. This phenomenon ensures no electric fRead more
The correct answer is (d) zero.
When a conductor is placed in an electric field, free electrons within it redistribute to cancel the external field inside. This results in electrostatic equilibrium, where the net electric field inside the conductor becomes zero. This phenomenon ensures no electric force acts on charges within the conductor.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
A uniform electric field of 100 N/C exists in vertically upward direction. The decrease in electric potential as one goes up through a height of 5 cm is
The potential difference (ΔV) in a uniform electric field is given by: ΔV = − E⋅d. where: E=100N/C (electric field strength) d = 5 cm = 0.05 m (displacement in the field direction) ΔV = −(100×0.05) ΔV = −5 V Since the question asks for the decrease in potential, the answer is: (c) 5 V For more visitRead more
The potential difference (ΔV) in a uniform electric field is given by:
ΔV = − E⋅d.
where:
E=100N/C (electric field strength)
d = 5 cm = 0.05 m (displacement in the field direction)
ΔV = −(100×0.05)
ΔV = −5 V
Since the question asks for the decrease in potential, the answer is: (c) 5 V
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
Charge on a capacitor is doubled. Its capacity becomes k times, where
(b) k = 1 The capacitance of a capacitor is a property of the capacitor itself and does not change when the charge is altered. The capacitance is related to the physical characteristics of the capacitor, such as the area of the plates and the distance between them, not the amount of charge stored. TRead more
(b) k = 1
The capacitance of a capacitor is a property of the capacitor itself and does not change when the charge is altered. The capacitance is related to the physical characteristics of the capacitor, such as the area of the plates and the distance between them, not the amount of charge stored. Therefore, the capacitance remains the same, so k = 1.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
Electrical capacity of earth is
(c) 711 µ F The electrical capacity of the Earth is approximately 711 microfarads (µF). This is based on the Earth acting as a large spherical conductor, and the value is derived from the Earth's surface area and the electric potential of the Earth. For more visit here: https://www.tiwariacademy.comRead more
(c) 711 µ F
The electrical capacity of the Earth is approximately 711 microfarads (µF). This is based on the Earth acting as a large spherical conductor, and the value is derived from the Earth’s surface area and the electric potential of the Earth.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
When two capacitors charged to different potentials are connected by a conducting wire, what is not true?
When two capacitors at different potentials are connected by a conducting wire, charge redistributes until they reach a common potential. The charge lost by one equals the charge gained by the other, but potential change depends on capacitance. Some energy is lost as heat due to charge redistributioRead more
When two capacitors at different potentials are connected by a conducting wire, charge redistributes until they reach a common potential. The charge lost by one equals the charge gained by the other, but potential change depends on capacitance. Some energy is lost as heat due to charge redistribution.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
A condenser is charged to double its initial potential. The energy stored in the condenser becomes x times, where x = ……
The correct answer is (b) 4. The energy stored in a capacitor is given by U = (1/2) C V². When the potential V is doubled, the new energy becomes U' = (1/2) C (2V)² = (1/2) C × 4V² = 4U. Thus, the energy stored in the capacitor increases 4 times its initial value. For more visit here: https://www.tiRead more
The correct answer is (b) 4.
The energy stored in a capacitor is given by U = (1/2) C V². When the potential V is doubled, the new energy becomes U’ = (1/2) C (2V)² = (1/2) C × 4V² = 4U. Thus, the energy stored in the capacitor increases 4 times its initial value.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
When a number of capacitors are connected in parallel between two points, the equivalent capacitance
The correct answer is: (a) increases When capacitors are connected in parallel, their total capacitance is the sum of their individual capacitances: Ceq = C₁ + C₂ + C₃ +… This increases the overall capacitance, allowing the system to store more charge at the same voltage. For more visit here: https:Read more
The correct answer is: (a) increases
When capacitors are connected in parallel, their total capacitance is the sum of their individual capacitances: Ceq = C₁ + C₂ + C₃ +…
This increases the overall capacitance, allowing the system to store more charge at the same voltage.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
When a number of capacitors are connected in series between two points, all the capacitors possess same
The correct answer is: (c) charge When capacitors are connected in series, the same charge flows through each capacitor. However, the potential difference across each capacitor may vary depending on its capacitance, while the total capacitance is less than the smallest individual capacitor in the seRead more
The correct answer is:
(c) charge
When capacitors are connected in series, the same charge flows through each capacitor. However, the potential difference across each capacitor may vary depending on its capacitance, while the total capacitance is less than the smallest individual capacitor in the series.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/
When air inbetween the plates of a capacitor is replaced by mica of dielectric constant 6, its capacity
When air is replaced by mica, which has a dielectric constant of 6, the capacitance of the capacitor increases by a factor of 6. This is because the capacitance is directly proportional to the dielectric constant of the material between the plates. Thus, replacing air with mica increases the capacitRead more
When air is replaced by mica, which has a dielectric constant of 6, the capacitance of the capacitor increases by a factor of 6. This is because the capacitance is directly proportional to the dielectric constant of the material between the plates. Thus, replacing air with mica increases the capacitance sixfold.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-2/