The size of the concentric circles representing the magnetic field around a current-carrying circular loop is influenced by the distance from the center of the loop. According to Ampere's law, the magnetic field produced by a current-carrying loop of wire is strongest close to the wire and weakens aRead more
The size of the concentric circles representing the magnetic field around a current-carrying circular loop is influenced by the distance from the center of the loop. According to Ampere’s law, the magnetic field produced by a current-carrying loop of wire is strongest close to the wire and weakens as you move away from it.
The magnetic field lines form concentric circles around the wire, and the intensity of the magnetic field decreases with distance from the center of the loop. The relationship between the magnetic field strength (B), the distance from the center of the loop (r), and the current (I) is given by the formula:
B= μ0I/2πr,
where:
B is the magnetic field strength,
I is the current flowing through the loop,
r is the radial distance from the center of the loop,
μ0 is the permeability of free space, a constant.
As r increases, the magnetic field strength decreases, and the concentric circles representing the magnetic field become larger and weaker. Conversely, closer to the loop, the magnetic field is stronger, and the circles are smaller.
To determine the direction of the magnetic field around a current-carrying conductor, you can use the right-hand rule. For a horizontal power line carrying current from east to west: 1. Below the Power Line (Directly Below): If you extend your right thumb in the direction of the current (from east tRead more
To determine the direction of the magnetic field around a current-carrying conductor, you can use the right-hand rule. For a horizontal power line carrying current from east to west:
1. Below the Power Line (Directly Below):
If you extend your right thumb in the direction of the current (from east to west) and your four fingers in the upward direction, then your palm would be facing in the direction of the magnetic field. Therefore, the magnetic field directly below the power line would be pointing upward.
2. Above the Power Line (Directly Above):
If you extend your right thumb in the direction of the current (from east to west) and your four fingers in the downward direction, then your palm would be facing in the direction of the magnetic field. Therefore, the magnetic field directly above the power line would be pointing downward.
In summary, the magnetic field directly below the power line is upward, and directly above the power line, it is downward. This is based on the right-hand rule for determining the direction of the magnetic field around a current-carrying conductor.
When the length of a wire is doubled in an electrical circuit, the ammeter reading decreases. This is because the resistance of the wire is directly proportional to its length, according to Ohm's Law (R= ρ L/A). When the length is doubled, the resistance also doubles. Since current (I) is inverselyRead more
When the length of a wire is doubled in an electrical circuit, the ammeter reading decreases. This is because the resistance of the wire is directly proportional to its length, according to Ohm’s Law (R= ρ L/A). When the length is doubled, the resistance also doubles. Since current (I) is inversely proportional to resistance in Ohm’s Law (I= V/R), the increase in resistance leads to a decrease in the ammeter reading, assuming the voltage remains constant.
The concentration of sunlight to form a bright spot on the paper is achieved through the use of a concave mirror. When sunlight falls onto the concave mirror, the mirror converges the incoming parallel rays to a specific point known as the focal point or focus. The bright spot on the paper is essentRead more
The concentration of sunlight to form a bright spot on the paper is achieved through the use of a concave mirror. When sunlight falls onto the concave mirror, the mirror converges the incoming parallel rays to a specific point known as the focal point or focus. The bright spot on the paper is essentially the image of the Sun formed at this focal point.
The concave mirror is designed in such a way that it brings the sunlight to a sharp focus, creating an intense and concentrated spot of light. This concentration of sunlight at a single point generates heat, and if the intensity is high enough, it can lead to the ignition or burning of the paper at that focused spot.
What factor influences the size of the concentric circles representing the magnetic field around a current-carrying circular loop?
The size of the concentric circles representing the magnetic field around a current-carrying circular loop is influenced by the distance from the center of the loop. According to Ampere's law, the magnetic field produced by a current-carrying loop of wire is strongest close to the wire and weakens aRead more
The size of the concentric circles representing the magnetic field around a current-carrying circular loop is influenced by the distance from the center of the loop. According to Ampere’s law, the magnetic field produced by a current-carrying loop of wire is strongest close to the wire and weakens as you move away from it.
The magnetic field lines form concentric circles around the wire, and the intensity of the magnetic field decreases with distance from the center of the loop. The relationship between the magnetic field strength (B), the distance from the center of the loop (r), and the current (I) is given by the formula:
B= μ0I/2πr,
See lesswhere:
B is the magnetic field strength,
I is the current flowing through the loop,
r is the radial distance from the center of the loop,
μ0 is the permeability of free space, a constant.
As r increases, the magnetic field strength decreases, and the concentric circles representing the magnetic field become larger and weaker. Conversely, closer to the loop, the magnetic field is stronger, and the circles are smaller.
What is the direction of the magnetic field directly below and above a horizontal power line carrying current from east to west?
To determine the direction of the magnetic field around a current-carrying conductor, you can use the right-hand rule. For a horizontal power line carrying current from east to west: 1. Below the Power Line (Directly Below): If you extend your right thumb in the direction of the current (from east tRead more
To determine the direction of the magnetic field around a current-carrying conductor, you can use the right-hand rule. For a horizontal power line carrying current from east to west:
1. Below the Power Line (Directly Below):
If you extend your right thumb in the direction of the current (from east to west) and your four fingers in the upward direction, then your palm would be facing in the direction of the magnetic field. Therefore, the magnetic field directly below the power line would be pointing upward.
2. Above the Power Line (Directly Above):
If you extend your right thumb in the direction of the current (from east to west) and your four fingers in the downward direction, then your palm would be facing in the direction of the magnetic field. Therefore, the magnetic field directly above the power line would be pointing downward.
See lessIn summary, the magnetic field directly below the power line is upward, and directly above the power line, it is downward. This is based on the right-hand rule for determining the direction of the magnetic field around a current-carrying conductor.
कहानी ‘मिठाई’ में गधे के मित्र कौन-कौन हैं।
कहानी ‘मिठाई’ में गधे के मित्र भालू हाथी, ख़रगोश, गिलहरी, चिंटा और बिल्ली है।
कहानी ‘मिठाई’ में गधे के मित्र भालू हाथी, ख़रगोश, गिलहरी, चिंटा और बिल्ली है।
See lessWhat happens to the ammeter reading when the length of a wire is doubled?
When the length of a wire is doubled in an electrical circuit, the ammeter reading decreases. This is because the resistance of the wire is directly proportional to its length, according to Ohm's Law (R= ρ L/A). When the length is doubled, the resistance also doubles. Since current (I) is inverselyRead more
When the length of a wire is doubled in an electrical circuit, the ammeter reading decreases. This is because the resistance of the wire is directly proportional to its length, according to Ohm’s Law (R= ρ L/A). When the length is doubled, the resistance also doubles. Since current (I) is inversely proportional to resistance in Ohm’s Law (I= V/R), the increase in resistance leads to a decrease in the ammeter reading, assuming the voltage remains constant.
See lessWhat is responsible for concentrating sunlight to form the bright spot on the paper?
The concentration of sunlight to form a bright spot on the paper is achieved through the use of a concave mirror. When sunlight falls onto the concave mirror, the mirror converges the incoming parallel rays to a specific point known as the focal point or focus. The bright spot on the paper is essentRead more
The concentration of sunlight to form a bright spot on the paper is achieved through the use of a concave mirror. When sunlight falls onto the concave mirror, the mirror converges the incoming parallel rays to a specific point known as the focal point or focus. The bright spot on the paper is essentially the image of the Sun formed at this focal point.
The concave mirror is designed in such a way that it brings the sunlight to a sharp focus, creating an intense and concentrated spot of light. This concentration of sunlight at a single point generates heat, and if the intensity is high enough, it can lead to the ignition or burning of the paper at that focused spot.
See less