What is the change in magnetic field from t=0 to t=0.12s?
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Question: A square loop of wire (edge length 43 cm) is found to have an induced emf of 1.3 V at t = 0. (a) ...
A square loop of wire (edge length 43 cm) is found to have an induced emf of 1.3 V at t = 0.
(a) Assuming the magnetic field is perpendicular to the loop and that the magnitude of the field varies linearly with time, what is the change in the magnetic field from
t = 0 to t = 0.12 s?
T
(b) Explain why it is only possible to compute the change in B and not its absolute magnitude.
-because the direction of the flux change is not known
-because the direction of the flux change is known
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