Electromagnetic Induction questions
610 published questions with worked solutions.
- A certain elastic conducting material is stretched into a circular loop. It is placed with its plane perpendicular to a uniform...
- In an ac generator, a rectangular coil of 100 turns each having area 14 10^ -2 m^2 is rotated at 360 rev/min about an axis...
- Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon
- When the current changes from +2 A to −2 A in 0.05 second, an e.m.f. of 8 V is induced in a coil. The coefficient of...
- In an oscillating LC circuit the maximum charge on the capacitor is Q. The charge on the capacitor when the energy is stored...
- A coil having n turns and resistance 4RΩ. This combination is moved in time t seconds from a magnetic field W_1 weber to W_2...
- In a uniform magnetic field of induction B a wire in the form of semicircle of radius r rotates about the diameter of the circle...
- A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 radians per second. If the...
- A coil of inductance 300mH and resistance 2Ω is connected to a source of voltage 2V. The current reaches half of its steady state...
- In an AC generator, a coil with N turns, all of the same area A and total resistance R, rotates with frequency in a magnetic...
- The flux linked with a coil at any instant ' t ' is given by = 10t^2 - 50t + 250 The induced emf at t = 3 s is
- Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross sectional area A = 10 cm^2 and length = 20 cm....
- A boat is moving due east in a region where the earth's magnetic field is 5.0 10^ -5 NA^ -1 m^ -1 due north and horizontal. The...
- A fully charged capacitor C with initial charge q_0 is connected to a coil of self inductance L at t = 0. The time at which the...
- In c.g.s. system unit of magnetic flux is
- 1 maxwell =------ weber
- Magnetic flux linked with an area dA held at an angle between area vector and direction of B is given by:
- The C.G.S unit of magnetic flux is
- 'The rate of change of magnetic flux linked with the coil is equal to the magnitude of induced e.m.f.' This is the statement of
- The magnitude of induced emf during electromagnetic induction, is directly proportional to
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