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A coil of resitance 400Omega is placed ...

A coil of resitance `400Omega` is placed in a magnetic field . If the magentic flux `phi` (Wb) linked with the coil varies with time t (second) as `phi =50 t^(2) +4` The current in the coils at t=2 s is

A

2A

B

1A

C

0.5 A

D

0.1 A

Text Solution

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The correct Answer is:
C
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