Section-C: Comprehension Type
ABCDA is a closed loop of conducting wire consisting of two semicircular sections, the part ABC lying in the XY plane and the part CDA lying in the YZ plane, both the parts having the centre at origin O (see the diagram). This loop is placed in a uniform field which varies with time. Radius of the semicircular section is 0.5 m.
If be directed along the vector and decreases at the rate of 10-2 Tesla/second, the magnitude and sense of the induced emf in the loop as seen along the positive x-axis will be