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When a lamp is connected to an alternating voltage supply, it lights with the same brightness as when connected to a 12 V d.c. battery. what is the peak value of alternating voltage source?
When the lamp connected to an alternating voltage supply lights with the same brightness as when connected to a 12 V DC battery, the RMS value of the AC voltage is 12 V. The peak value (V peak ) is √2 × 12 ≈ 16.97V. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/Read more
When the lamp connected to an alternating voltage supply lights with the same brightness as when connected to a 12 V DC battery, the RMS value of the AC voltage is 12 V. The peak value (V peak ) is √2 × 12 ≈ 16.97V.
For more visit here:
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Which physical quantity remains unchanged in a transformer?
In a transformer, the power (ideally) remains unchanged. The input power in the primary winding is equal to the output power in the secondary winding, assuming no energy losses (ideal transformer condition). For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-Read more
In a transformer, the power (ideally) remains unchanged. The input power in the primary winding is equal to the output power in the secondary winding, assuming no energy losses (ideal transformer condition).
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The susceptibility of a magnetic material is – 4.2 × 10⁻⁶. Name the type of magnetic materials it represents.
The susceptibility of −4.2 × 10-⁶ indicates that the material is diamagnetic. Diamagnetic materials have a small negative susceptibility, meaning they are weakly repelled by a magnetic field and do not retain magnetism. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physRead more
The susceptibility of −4.2 × 10-⁶ indicates that the material is diamagnetic. Diamagnetic materials have a small negative susceptibility, meaning they are weakly repelled by a magnetic field and do not retain magnetism.
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What should be the orientation of a magnetic dipole in a uniform field so that its potential energy is minimum (or the dipole is in stable equilibrium)?
The potential energy of a magnetic dipole in a uniform magnetic field is minimum (stable equilibrium) when the dipole aligns parallel to the field, with its magnetic moment (m) pointing in the same direction as the field (B). For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-1Read more
The potential energy of a magnetic dipole in a uniform magnetic field is minimum (stable equilibrium) when the dipole aligns parallel to the field, with its magnetic moment (m) pointing in the same direction as the field (B).
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-5/
If the earth loses its gravity, then for a body
If the Earth were to lose its gravity, then a body near the Earth's surface would face drastic and immediate consequences. Gravity is the force that pulls objects toward the center of the Earth, keeping them grounded. Without this force, a body would no longer experience weight and would enter a staRead more
If the Earth were to lose its gravity, then a body near the Earth’s surface would face drastic and immediate consequences. Gravity is the force that pulls objects toward the center of the Earth, keeping them grounded. Without this force, a body would no longer experience weight and would enter a state of free fall.
In this scenario, everything ranging from individuals, houses, and other moving vehicles would start levitating in space and going off the Earth’s crust. This would be caused by a complete absence of gravity force. There is no pull to keep anchored any objects on the earth surface. Anything in motion will continue flowing without being halted by forces like gravity because it never acted in a pulling direction during the previous instance.
Moreover, it would have devastating consequences on the Earth’s atmosphere because gravity holds it there, and without it, air would dissipate into space, and people as well as other living things cannot breathe. Loss of gravity will affect the structural integrity of buildings and other structures leading to possible catastrophic failure.
In a nutshell, if Earth lost its gravity, all bodies would float into space, and life on this earth would be altered so much that it would never be the same, rendering the environment uninhabitable.
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