Electromagnetic Induction questions
610 published questions with worked solutions.
- A solid metal cube of edge length 2 cm is moving in a positive y-direction at a constant speed of 6 m/s. There is a uniform...
- An emf of 20 V is applied at time t = 0 to a circuit containing in series 10 mH inductor and 5 resistor. The ratio of the...
- A planar loop of wire rotates in a uniform magnetic field. Initially, at t = 0, the plane of the loop is perpendicular to the...
- In a fluorescent lamp choke (a small transformer) 100 V of reverse voltage is produced with the choke current changes uniformly...
- A uniform magnetic field B exists in a direction perpendicular to the plane of a square loop made of a metal wire. The wire has a...
- A coil of 200 turns and area 0.20 m^2 is rotated at half a revolution per second and is placed in uniform magnetic field of 0.01...
- A rectangular loop of sides 12 cm and 5 cm, with its sides parallel to the x-axis and y-axis respectively, moves with a velocity...
- A rod of length 60 cm rotates with a uniform angular velocity 20 rad s^ -1 about its perpendicular bisector, in a uniform...
- The current in an inductor is given by I = (3t + 8) where t is in second. The magnitude of induced emf produced in the inductor...
- A long solenoid of radius R carries a time (t) – dependent current I(t)=I_0t(1-t). A ring of radius 2R is placed coaxially near...
- Consider a circular coil of wire carrying constant current I, forming a magnetic dipole. The magnetic flux through an infinite...
- A loop ABCDEFA of straight edges has six corner points A(0, 0, 0), B(5, 0, 0), C(5, 5, 0), D(0, 5, 0), E(0, 5, 5) and F(0, 0, 5)....
- In a coil, the current changes from −2 A to +2A in 0.2 s and induces an emf of 0.1 V. The self inductance of the coil is:
- A circular coil of radius 10 cm is placed in a uniform magnetic field of 3.0 10^ -5 T with its plane perpendicular to the field...
- A series L-R circuit is connected to a battery of emf V. If the circuit is switched on at t = 0, then the time at which the...
- Two concentric circular coils, C_1 and C_2, are placed in the XY plane. C_1 has 500 turns, and a radius of 1 cm. C_2 has 200...
- A square loop of side 1 m and resistance 1 is placed in a magnetic field of 0.5 T. If the plane of loop is perpendicular to the...
- A big circular coil of 1000 turns and average radius 10 m is rotating about its horizontal diameter at 2 rad s^ -1 . If the...
- A circular current loop of radius R is placed inside a square loop of side length L (L >> R) such that they are co-planar and...
- When a coil is placed in a time dependent magnetic field the power dissipated in it is P. The number of turns, area of the coil...
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