10. A rectangular coil of sides 6.50 cm and 18.0 cm contains 130 loops and its plane is positioned perpendicular to a uniform 0.60-T magnetic field, as shown. It is quickly and uniformly pulled from the field to a region where the B-field drops abruptly to zero. It takes 0.14 s for the whole coil to reach the field-free region. How much power is dissipated in the coil if its resistance is 120 0?
10. A rectangular coil of sides 6.50 cm and 18.0 cm contains 130 loops and its plane is positioned perpendicular to a uniform 0.60-T magnetic field, as shown. It is quickly and uniformly pulled from the field to a region where the B-field drops abruptly to zero. It takes 0.14 s for the whole coil to reach the field-free region. How much power is dissipated in the coil if its resistance is 120 0?
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Step 1
Faraday's Law of Electromagnetic Induction
- Whenever there is a change in magnetic flux linked to a coil, an emf is induced in the coil.
- The emf induced in the coil is directly proportional to the rate of change of induced emf.
Lenz's Law
The direction of the induced emf is such that it opposes the very cause for which it is generated.
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