Current Electricity and Electrical InstrumentMedium
Question
The radius of the circular loop is ′a′. Magnetic field is increasing at the constant rate α Magnetic field is confined to a cylindrical region and axis of magnetic field coincides with the axis of the loop. Resistance per unit length of the wire of loop is ρ. Choose the CORRECT option(s) :-


Options
A.Current in the loop PQRS is
anticlockwise
B.Current in the loop PQRS in
clockwise
C.Current in the wire PR is zero
D.Current in the wire PR is 
Solution
Induced emf = A 
or e = πa2α
IPQRS =
IPR = 0
or e = πa2α
IPQRS =
IPR = 0
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