Questions

An electron is moving in a circular path under the influence of a transverse magnetic

An electron is moving in a circular path under the influence of a transverse magnetic field of 3.57x10⁻² T. If…

Before using the tangent galvanometer, its coil is set in

Before using the tangent galvanometer, its coil is set in Options (a) Magnetic meridian (b) Perpendicular to magnetic meridian (c)…

Tangent galvanometer is used to measure

Tangent galvanometer is used to measure Options (a) Current (b) Resistance (c) Charge (d) Potential difference Correct Answer: CurrentExplanation:No explanation…

If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio

If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio of their resistances…

A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction

A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction 1/π (Wb / m²)…

A bar magnet of magnetic moment M is placed at right angles to a magnetic

A bar magnet of magnetic moment M is placed at right angles to a magnetic induction B. If a force…

A bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal

A bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal plane. A…

A charged particle (charge q) is moving in a circle of radius R with uniform speed v

A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic…

A closely wound solenoid of 2000 turns and area of cross-section 1.5 x 10⁻⁴ m² carries

A closely wound solenoid of 2000 turns and area of cross-section 1.5 x 10⁻⁴ m² carries a current of 2.0…

A beam of electron passes undeflected through mutually perpendicular

A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off,…