(a) What is the net emf in the circuit? 1 V (b) What is the direction of the (ne
ID: 1680312 • Letter: #
Question
(a) What is the net emf in the circuit?1 V
(b) What is the direction of the (net) current around the loop? 2 counterclockwise clockwise 2 counterclockwise clockwise 2 counterclockwise clockwise 2 A square wire loop with 1.70 m sides isperpendicular to a uniform magnetic field, with half the area ofthe loop in the field as shown in the figure below. The loopcontains an ideal 20.0 V battery. The magnitude of the field varieswith time according to B = 0.3620- 0.870t, with B inteslas and t in seconds. (a) What is the net emf in the circuit? 1 V (b) What is the direction of the (net) current around the loop?counterclockwise clockwise
Explanation / Answer
B is decreasing in its direction hence the current is induced in such a way that B due to this is outward hence the current is anti clockwise ande.m.f induced is in the direction of existing e.m.f net is 20V+0.87*1.7*1.7/2=21.25V
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