Questions

A bar magnet of moment of inertia I is vibrated in a magnetic field of induction

A bar magnet of moment of inertia I is vibrated in a magnetic field of induction 0.4x10⁻⁴ T. The time…

A body of mass 3 kg is under a constant force which cause a displacement

A body of mass 3 kg is under a constant force which cause a displacement s in metres in it,…

A block of wood weighs 10 N and is resting on an inclined plane. The coefficient

A block of wood weighs 10 N and is resting on an inclined plane. The coefficient of friction is 0.7.…

Infinite number of masses, each 1 kg, are placed along the x-axis

Infinite number of masses, each 1 kg, are placed along the x-axis at x= ±1 m, ±2 m, ±4 m,…

A siren emitting sound of frequency 800 Hz is going away from a static listener

A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30…

A capacitor of capacitance value 1 μF is charged to 30 V and the battery

A capacitor of capacitance value 1 μF is charged to 30 V and the battery is then disconnected. If it…

A hollow metal sphere of radius 10 cm is charged such that the potential on its surface

A hollow metal sphere of radius 10 cm is charged such that the potential on its surface is 80V. The…

A p-n-p transistor is used in common emitter mode in an amplifier circuit.

A p-n-p transistor is used in common emitter mode in an amplifier circuit. When base current is changed by an…

Application of a forward bias to a P-N junction

Application of a forward bias to a P-N junction Options (a) Widens the depletion region (b) Increases the potential difference…

A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T.

A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T. The velocity of the conductor is…