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A pair of parallel conducting rails lie at right angle to a uniform magnetic field of 2.0 T as shown in the fig. two resistor 10 Ω and 5 Ω are to slide without friction along the rail. The distance between the conducting rails is 0.1 m. Then
10
Sep
A pair of parallel conducting rails lie at right angle to a uniform magnetic field of 2.0 T as shown in the fig. two resistor 10 Ω and 5 Ω are to slide without friction along the rail. The distance between the conducting rails is 0.1 m. Then A straight wire of length L is [...]
A point source of light O (behaving as a point object) is placed infront of a prism at a distance a from it. A screen is placed at a distance b from the source is prism. If the angle theta is very small
10
Sep
A point source of light O (behaving as a point object) is placed infront of a prism at a distance a from it. A screen is placed at a distance b from the source is prism. If the angle theta is very small having the same thickness as the first one but In Young's experiment [...]
A rectangular loop with a sliding connector of length l = 1.0 m is situated in a uniform magnetic field B = 2T perpendicular to the plane of loop. Resistance of connector is r = 2 Ω. Two resistances of 6 Ω and 3Ω are connected as shown in figure. The external force required to keep the connector moving with a constant velocity v = 2 m/s is
10
Sep
A rectangular loop with a sliding connector of length l = 1.0 m is situated in a uniform magnetic field B = 2T perpendicular to the plane of loop. Resistance of connector is r = 2 Ω. Two resistances of 6 Ω and 3Ω are connected as shown in figure. The external force required to [...]
Two small angled transparent prisms (each of refracting angle A = 1) are so placed that their bases coincide, so that common base is BC. This device is called Fresnel’s biprism and is used to obtain
10
Sep
Two small angled transparent prisms (each of refracting angle A = 1) are so placed that their bases coincide, so that common base is BC. This device is called Fresnel’s biprism and is used to obtain so that common base is BC. This device is called Fresnel's biprism and is used to obtain Two small [...]
Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h−1 in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m s−2. If after 50 s, the guard of B just brushes past the driver of A, what was the original distance between them?
10
Sep
Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h−1 in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m s−2. If after 50 s, the guard of B [...]
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the guard of B just brushes past the driver of A ,
Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of 72 km h−1 in the same direction ,
what was the original distance between them? ,
with A ahead of B. The driver of B decides to overtake A and accelerates by 1 m s−2. If after 50 s ,
A conducting rod PQ of length 1 m is moving with uniform velocity of 2 m/s in a uniform magnetic field of 2 T directed into the plane of paper. A capacitor of capacity c = 10 μF is connected as shown. Then :
10
Sep
A conducting rod PQ of length 1 m is moving with uniform velocity of 2 m/s in a uniform magnetic field of 2 T directed into the plane of paper. A capacitor of capacity c = 10 μF is connected as shown. Then : A copper rod of length l is rotated about one end [...]
A police car moving on a highway with a speed of 30 km h−1 fires a bullet at a thief’s car speeding away in the same direction with a speed of 150 km h−1. If the muzzle speed of the bullet is 150 m s−1, with what speed does the bullet hit the thief’s car?
10
Sep
A police car moving on a highway with a speed of 30 km h−1 fires a bullet at a thief’s car speeding away in the same direction with a speed of 150 km h−1. If the muzzle speed of the bullet is 150 m s−1, with what speed does the bullet hit the thief’s car? [...]
A square metallic wire loop of side 0.1 m and resistance of 1 W is moved with a constant velocity in a magnetic field of 2wb/m2 as shown in figure. The magnetic field field is perpendicular to the plane of the loop, loop is coonected to a network of resistances. what should be the velocity of loop so as to have a steady current of 1 mA in loop?
10
Sep
A square metallic wire loop of side 0.1 m and resistance of 1 W is moved with a constant velocity in a magnetic field of 2wb/m2 as shown in figure. The magnetic field field is perpendicular to the plane of the loop, loop is coonected to a network of resistances. what should be the velocity [...]
A 175 m long train is travelling along a straight track with a velocity 72 km−1 h. A bird is flying parallel to the train in the opposite direction with a velocity 18 km−1 h. The time taken by the bird to cross the train is :
10
Sep
A 175 m long train is travelling along a straight track with a velocity 72 km−1 h. A bird is flying parallel to the train in the opposite direction with a velocity 18 km−1 h. The time taken by the bird to cross the train is : A person walks up a stationary escalator in [...]
A simple pendulum with bob of mass m and conducting wire of length L swings under gravity through an angle 2θ. The earth’s magnetic field component in the direction perpendicular to swing is B . Maximum potential difference induced across the pendulum is
10
Sep
A simple pendulum with bob of mass m and conducting wire of length L swings under gravity through an angle 2θ. The earth’s magnetic field component in the direction perpendicular to swing is B . Maximum potential difference induced across the pendulum is A copper rod of length l is rotated about one end perpendicular [...]