Physics-
General
Easy
Question
The plane of a square loop of wire with edge length a = 0.2 m is perpendicular to the earth's magnetic field BE at a point where BE = 15 
T. The total resistance of the loop and the wires connecting it to the galvanometer is 0.5 
. If the loop is suddenly collapsed (such that area of the loop becomes zero) by horizontal forces as shown, the total charge passing through the galvanometer is :
- 0.4 C
- 0.75 C
- 0.9 C
- 1.2 C
C
C
C
C
The correct answer is: 1.2 C
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