A rectangular loop has a sliding connector PQ of length l and resistance 
and it is moving with a speed v as shown. The set up is placed in a uniform magnetic field going into the plane of the paper. The three currents 
and I are
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
A moving conductor is equivalent to a battery of emf 
[motion emf]
Equivalent circuit, 
… (i)
Applying Kirchhoff's law,
… (ii)
… (iii)
Adding Eqs. (ii) and (iii), we get
[From Eq. (i)]
Subtracting Eq.(iii) from Eq.(ii), we get
= 0 
… (iv)
From Eq. (i), we get
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