Electromagnetic Induction

A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity

A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity 5x10⁻⁴Wbm⁻². If the acceleration of…

A resistor 30Ω, inductor of reactance 10 Ω and capacitor of reactance 10 Ω

A resistor 30Ω, inductor of reactance 10 Ω and capacitor of reactance 10 Ω are connected in series to an…

A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,

A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s, perpendicular to a…

A coil has an area of 0.05 m² and it has 800 turns. It is placed perpendicularly

A coil has an area of 0.05 m² and it has 800 turns. It is placed perpendicularly in a magnetic…

A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions

A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions per second, in a uniform…

The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is

The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is Options (a) 5πΩ (b) 50Ω (c)…

The current in the coil of inductance 5H decreases at the rate of 2 A/s

The current in the coil of inductance 5H decreases at the rate of 2 A/s. The induced e.m.f is Options…

The flux linked with a coil at any intant t is given by ?=10t² – 50t + 250

The flux linked with a coil at any intant t is given by ?=10t² - 50t + 250. The induced…

An air core solenoid has 1000 turns and is one meter long. Its cross sectional area

An air core solenoid has 1000 turns and is one meter long. Its cross sectional area is 10 cm². Its…

Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V

Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100 V.…