Questions
The resistance in the following circuit is increased at a particular instant. At this instant the value of resistance is 10. The current in the circuit will be now
detailed solution
Correct option is B
If resistance is constant (10Ω) then steady current in the circuit i=510=0.5 A . But resistance is increasing it means current through the circuit start decreasing. Hence inductance comes in picture which induces a current in the circuit in the same direction of main current. So i > 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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