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Problem
Problem
A rectangular loop of sides
a
a
a
and
b
b
b
is placed in
x
y
xy
x
y
-plane. A uniform but time varying magnetic field of strength
B
=
20
t
i
^
+
10
t
2
j
^
+
50
k
^
\mathbf{B} = 20 t \hat{i} + 10 t^2 \hat{j} + 50 \hat{k}
B
=
20
t
i
^
+
10
t
2
j
^
+
50
k
^
is present in the region. The magnitude of induced emf in the loop at time
t
t
t
is (a)
20
+
20
t
20 + 20 t
20
+
20
t
(b)
20
20
20
(c)
20
t
20 t
20
t
(d) zero
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