Questions
In the circuit shown, sliding contact is moving with uniform velocity towards right. Its value at some instance is . The current in the circuit at this instant of time will be
detailed solution
Correct option is B
Since resistance of the circuit is increasing and hence current in the circuit is decreasing so didtis negative.Current in the circuit is given by i=6−Ldidt12Since di/dt is negative so the value of numerator will be more than 6 V and hence current in the circuit at that instant will be more than 0.5 A.Talk to our academic expert!
Similar Questions
Two different coils have self-inductance mH, . The current in one coil is increased at a constant rate. The current in the second coil is also increased at the same rate. At a certain instant of time, the power given to the two coils is the same. At that time the current, the induced voltage and the energy stored in the first coil are and respectively. Corresponding values for the second coil at the same instant are and respectively. Then
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