The magnetic potential energy stored in a
certain inductor is 25 mJ, when the current
in the inductor is 60 mA. This inductor is of
inductance
A
0.138 H
B
138.88 H
C
1.389 H
D
13.89 H
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Figure shows a circuit that contains three identical resistors with resistance R = 9.0 $$\Omega $$ each, two identical inductors with inductance $$L$$ = 2.0 mH each, and an ideal battery with emf $$\varepsilon = 18V$$. The current $$i$$ through the battery just after the switch closed is
A
0.2 A
B
4 A
C
0 ampere
D
2 mA
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
A 100 $$\Omega $$ resistance and a capacitor of 100 $$\Omega $$ reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement current is
A
2.2 A
B
11 A
C
4.4 A
D
11$$\sqrt 2 A$$
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
The potential differences across the resistance, capacitance and inductance are 80 V, 40 V and 100 V respectively in an L-C-R circuit. The power factor of this circuit is
