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Magnetic flux linked with a closed circuit of resistance 10 is given by weber, when t is time in second. Then induced electric current at t = 0 is
detailed solution
Correct option is B
ε=-dϕdt=(4-10t) volt At t=0, ε=4 volt ∴ At t=0, i=410 volt =0.4 volt.Talk to our academic expert!
Similar Questions
The magnetic field in the cylindrical region shown in figure increases at a constant rate of 20 mT/s. Each side of the square loop ABCD has a length of 1 cm and resistance of Find the current in the wire AB if the switch S is closed
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