In a physics laboratory experiment, a coil with 180 turnsenclosing an area of 12

Question

In a physics laboratory experiment, a coil with 180 turnsenclosing an area of 12.0 cm^2 is rotated during the time interval 3.60x10^-2 s from a position in which its plane isperpendicular to Earths magnetic field to one in which its planeis parallel to the field. The magnitude of Earths magnetic fieldat the lab location is5.10x10^-5 T Part A What is the total magnitude of the magnitude flux (Phiinitial) through the coilbefore it is rotated? Part B What is the magnitude of the total magneticflux Phi final through the coil after it is rotated? Part C What is the magnitude of the average emfinduced in the coil?

Explanation / Answer

Part A)

Flux = NBA

Flux = (180)(5.1 X 10-5)(.0012)

Flux = 1.10 X 10-5 T m2

Part B)

Flux = 0 T m2

Part C)

EMF = Flux/time

EMF = (1.10 X 10-5)/(.036)

EMF = 3.06 X 10-4 V which is .306 mV

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