A loop of wire in the shape of a rectangle rotates with a frequency of 219 rotation per minute in an applied magnetic field of m
agnitude 6 T. Assume the magnetic field is uniform. The area of the loop is A = 4 cm2 and the total resistance in the circuit is 7 Ω.
Find the maximum induced emf.
e m fmax =_______
Find the maximum current through the bulb.
Imax=__________
Find the maximum induced emf.
e m fmax =_______
Find the maximum current through the bulb.
Imax=__________
1 answer:
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Answer:
Explanation:
Work is given by the equation where
is force and
is displacement.
Displacement is defined as change in position. In this case, the box moves from 5m to 20m. Its displacement is .
The force acting on the box is the force of gravity, given as .
Therefore, the total work done is:
(two significant figures).