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A stationary body of mass 3kg explodes into three equal pieces. Two of the pieces fly off at right angles to each other. One with a velocity of 2iˆm/s and the other with velocity of 3iˆm/s. If the explosion takes place in 10^−5 the average force acting on the third piece in newtons
20
Oct
A stationary body of mass 3kg explodes into three equal pieces. Two of the pieces fly off at right angles to each other. One with a velocity of 2iˆm/s and the other with velocity of 3iˆm/s. If the explosion takes place in 10^−5 the average force acting on the third piece in newtons An object [...]
Two identical balls A and B are released from the position shown in Fig. They collide elastically with each other on the horizontal portion. The ratio of heights attained by A and B after collision is (neglect friction)
20
Oct
Two identical balls A and B are released from the position shown in Fig. They collide elastically with each other on the horizontal portion. The ratio of heights attained by A and B after collision is (neglect friction) An object initially at rest explodes into three fragments A B and C. The momentum of A [...]
A current I = 3.36 (1+2 t) × 10^−2 A increase at a steady state in a long staight wire. A small circular loop of radius 10−3 m has its plane parallel to the wire and is placed at a distance of 1 m from the wire. The resistance of loop is 8.4 × 10^−4 (Ω). Find the approximate value of induced current in the loop.
20
Oct
A current I = 3.36 (1+2 t) × 10^−2 A increase at a steady state in a long staight wire. A small circular loop of radius 10−3 m has its plane parallel to the wire and is placed at a distance of 1 m from the wire. The resistance of loop is 8.4 × 10^−4 [...]
A particle of mass m is moving horizontally with a constant velocity v towards a rigid wall that is moving in opposite direction with a constant speed u. Assuming elastic impact between the particle and wall, the work done by the wall in reflecting the particle is equal to :
20
Oct
A particle of mass m is moving horizontally with a constant velocity v towards a rigid wall that is moving in opposite direction with a constant speed u. Assuming elastic impact between the particle and wall, the work done by the wall in reflecting the particle is equal to : An object initially at rest [...]
A ring of radius R is rolling on a horizontal plane with constant velocity v. There is a constant and uniform magnetic field B which is perpendicular to the plane of the ring. Emf across the lowest point A and right-most point C as shown in the figure will
20
Oct
A ring of radius R is rolling on a horizontal plane with constant velocity v. There is a constant and uniform magnetic field B which is perpendicular to the plane of the ring. Emf across the lowest point A and right-most point C as shown in the figure will -q A metallic square loop PQRS [...]
Consider parallel conducting rails separated by a distance l. There exists a uniform magnetic field B perpendicular to the plane of the rails as shown in Fig. Two conducting wires each of length l are placed so as to slide on parallel conducting rails. One of the wires is given a velocity v0 parallel to the rails. Till steady state is achieved, loss in kinetic energy of the system is
20
Oct
Consider parallel conducting rails separated by a distance l. There exists a uniform magnetic field B perpendicular to the plane of the rails as shown in Fig. Two conducting wires each of length l are placed so as to slide on parallel conducting rails. One of the wires is given a velocity v0 parallel to [...]
Assuming that the resistance of the meters are negligible, what will be the readings of the ammeters A1 and A2 in the circuit shown in figure ?
20
Oct
Assuming that the resistance of the meters are negligible, what will be the readings of the ammeters A1 and A2 in the circuit shown in figure ? Assuming that the resistance of the meters are negligible what will be the readings of the ammeters A1 and A2 in the circuit shown in figure ? October [...]
Find the current through the circuit and the potential difference across the diode shown in figure. The drift current for the diode is 20 micro A.
20
Oct
Find the current through the circuit and the potential difference across the diode shown in figure. The drift current for the diode is 20 micro A. Find the current through the circuit and the potential difference across the diode shown in figure. The drift current for the diode is 20 micro A. October 20, 2020 [...]
An object initially at rest explodes into three fragments A,B and C. The momentum of A is piˆ and that of B is 3–√p jˆ where p is a + ve number. The momentum of C will be
20
Oct
An object initially at rest explodes into three fragments A,B and C. The momentum of A is piˆ and that of B is 3–√p jˆ where p is a + ve number. The momentum of C will be An object initially at rest explodes into three fragments A B and C. The momentum of A [...]
The silicon diode shown in figure is rated for a maximum current of 10 mA. Calculate the minimum value of resistor R. Assume the forward voltage drop across the diode to be 0.7 V.
20
Oct
The silicon diode shown in figure is rated for a maximum current of 10 mA. Calculate the minimum value of resistor R. Assume the forward voltage drop across the diode to be 0.7 V. The silicon diode shown in figure is rated for a maximum current of 10 mA. Calculate the minimum value of resistor [...]