Two straight conducting rails form a right angle as shown below. A conducting bar in contact with the rails starts at the vertex at time 
and moves with constant velocity of 
along them. A magnetic field with 
is directed out of the page. The absolute value of the emf around the triangle at the time 
will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
In triangle 
at 
,
Now in 
,
So length 
of rod is 
Area of 
base 
height
So, magnitude of emf induced in triangular loop is
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