1.

For the ideal RL circuit shown, the resistance is R=10.0Omega, the inductance is L=5.0 H and the battery has voltage xi_("bat") = 12volts. Some time after the switch S in the circuit is closed, the ammeter in the circuit reads 0.40A. If the rate at which energy is being stored by the inductor at this instant is (16)/(x) Watts, what is the value of x?

Answer»

3
4
5
None of these

Solution :`(DU)/(DT)=(LIDI)/(dt)=i(V_(L))=i(V-V_(R))=0.4(12-0.4xx10)=3.2"Watts"=(16)/(5)"watts"impliesx=5`


Discussion

No Comment Found

Related InterviewSolutions