Electromagnetic Induction questions
610 published questions with worked solutions.
- The device that does not work on the principle of mutual induction is
- Alternating currents can be produced by a
- An emf induced in a coil rotating in a uniform magnetic field is given by
- The maximum value of e.m.f. induced in a coil rotating in a uniform magnetic field is called as
- The maximum value of A.C. emf in a complete cycle is
- A coil of 50 turns, each of area 0.12 m^2 is rotated at a constant speed of 600 revolutions per minute in a uniform magnetic...
- When a coil is rotated in a magnetic field, with steady speed then
- a coil of effective area 2 m^2 is rotated so as to cut a magnetic field of induction 7× 10^ -5 wb/ m^2 if the coil makes 100...
- A coil of copper having 1000 turns is placed in a magnetic field B=4 × 10^ -3 T perpendicular to its plane. The cross sectional...
- A coil of mean area 500 cm^2 and having 1000 turns is held perpendicular to a uniform field of 0.4 gauss. The coil is turned...
- The peak value of induced e.m.f.in a coil of 5000 turns each of area 50sq.cm.rotating at 600 r.p.m. about an axis at right angle...
- Which one of the following can produce maximum induce e.m.f.?
- The general equation for the instantaneous emf of a generator (frequency 50 cycle / sec), whose peak voltage is 200 V will be
- The r.m.s. value of induced voltage in a coil of 50 turns each of area30 sq.cm rotating at 1000 r.p.m. about an axis at right...
- When a coil of n turns each of area A rotates at constant angular velocity ω about an axis perpendicular to uniform magnetic...
- When a coil of n turns each of area A, rotating with uniform angular velocity ω perpendicular to uniform magnetic induction B,...
- When a coil is rotating in uniform magnetic field, the maximum value induced emf occurs when the plane of coil is:
- When a coil is rotating in uniform magnetic field the induced e.m.f.in a coil is zero when the plane of coil is:
- The coil in A.C. Generator rotates with frequency 50 Hz. Peak value of induced emf is 300 volt then the induced emf at 1/300 sec....
- A coil of area 5 cm^2 of 20 turns is placed in uniform magnetic field of 10^3 gauss. The normal to the plane of coil makes an...
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