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A carboard tube is wrapped with two winding of insulated wire wound in opposite directions as shown in Fig. 3.24. Terminal aandb of winding A may be connected to a battery through a reversing switch. State whether the induced current in the resistor R from left to right or from right to left in the following cicumstances.
19
Oct
A carboard tube is wrapped with two winding of insulated wire wound in opposite directions as shown in Fig. 3.24. Terminal aandb of winding A may be connected to a battery through a reversing switch. State whether the induced current in the resistor R from left to right or from right to left in the [...]
Air is blowing and is providing a constant horizontal acceleration ax = g to the particle as shown in the figure. Particle is projected from point P with a velocity u in upward direction. Let Q be the highest point of the particle. Speed of the particle at highest point Q is
19
Oct
Air is blowing and is providing a constant horizontal acceleration ax = g to the particle as shown in the figure. Particle is projected from point P with a velocity u in upward direction. Let Q be the highest point of the particle. Speed of the particle at highest point Q is A particle A [...]
A projectile is thrown with velocity u making an angle θ with the horizontal. Its time of flight on the horizontal ground is 4 second. The projectile is moving at angle of 45^∘ with the horizontal just one second after the projection. Hence the angle θ is (take g=10m/s^2)
19
Oct
A projectile is thrown with velocity u making an angle θ with the horizontal. Its time of flight on the horizontal ground is 4 second. The projectile is moving at angle of 45^∘ with the horizontal just one second after the projection. Hence the angle θ is (take g=10m/s^2) A particle A is projected vertically [...]
A body is projected at an angle of 45^∘ with horizontal from a point on ground at distance 6m from the foot of a vertical pole. It just crosses the top of the pole and falls on ground on the other side at a distance of 3 m from the foot of the pole. The height of the pole is:
19
Oct
A body is projected at an angle of 45^∘ with horizontal from a point on ground at distance 6m from the foot of a vertical pole. It just crosses the top of the pole and falls on ground on the other side at a distance of 3 m from the foot of the pole. The [...]
The direction of projection of particle is shown in the figure for an observer on trolley. An observer on the ground sees the ball rising vertically. The maximum height reached by the ball as seen from the trolley is
19
Oct
The direction of projection of particle is shown in the figure for an observer on trolley. An observer on the ground sees the ball rising vertically. The maximum height reached by the ball as seen from the trolley is A particle A is projected vertically upwards. Another particle B is projected at an angle of [...]
Ratio of minimum kinetic energies of two projectiles of same mass is 4:1. The ratio of the maximum height attained by them is also 4:1 . The ratio of their ranges would be
19
Oct
Ratio of minimum kinetic energies of two projectiles of same mass is 4:1. The ratio of the maximum height attained by them is also 4:1 . The ratio of their ranges would be Ratio of minimum kinetic energies of two projectiles of same mass is 4:1. The ratio of the maximum height attained by them [...]
Using Lenz’s law, determine the direction of the current in resistor ab in Fig. 3.23 when (a) switch S is opended after having been closed for several minutes. (b) coil B is brought closer to coil A with the swich closed. ltbr. ( c) the resistance of R is decreased while the switch remains closed
19
Oct
Using Lenz’s law, determine the direction of the current in resistor ab in Fig. 3.23 when (a) switch S is opended after having been closed for several minutes. (b) coil B is brought closer to coil A with the swich closed. ltbr. ( c) the resistance of R is decreased while the switch remains closed [...]
A conducting ring is placed near a solenoid as shown in Fig.3.21. Find the direction of the induced current in the ring. (a) At the instant the switch in the circuit containing the solenoid is closed. (b) After the switch has been closed for a long time. (c) At the instant the switch is opened.
19
Oct
A conducting ring is placed near a solenoid as shown in Fig.3.21. Find the direction of the induced current in the ring. (a) At the instant the switch in the circuit containing the solenoid is closed. (b) After the switch has been closed for a long time. (c) At the instant the switch is opened. [...]
A cube of edge length l = 2.50 cm is positioned as shown in Fig. 3.20. A uniform magnetic field given by B = ( 5.00 iˆ+ 4.00 jˆ+ 3.00 kˆ)T exists throughout the region. (a) Calculate the flux through the shaded face. (b) What is the total flux through the six faces ?
19
Oct
A cube of edge length l = 2.50 cm is positioned as shown in Fig. 3.20. A uniform magnetic field given by B = ( 5.00 iˆ+ 4.00 jˆ+ 3.00 kˆ)T exists throughout the region. (a) Calculate the flux through the shaded face. (b) What is the total flux through the six faces ? is [...]
Identify the direction of induced current as seen from the above in the following cases
19
Oct
Identify the direction of induced current as seen from the above in the following cases Identify the direction of induced current as seen from the above in the following cases October 19, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,