1
NEET 2018
+4
-1
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 2018
+4
-1
An inductor 20 mH, a capacitor 100 $$\mu$$F and a resistor 50 $$\Omega$$ are connected in series across a source of emf, V = 10 sin 314 t. The power loss in the circuit is
A
0.79 W
B
0.43 W
C
2.74 W
D
1.13 W
3
NEET 2017
+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
4
NEET 2016 Phase 2
+4
-1
Which of the following combinations should be selected for better tuning of an L-C-R circuit used for combination ?
A
R = 20 $$\Omega$$, L = 1.5 H, C = 35 $$\mu$$F
B
R = 25 $$\Omega$$, L = 2.5 H, C = 45 $$\mu$$F
C
R = 15 $$\Omega$$, L = 3.5 H, C = 30 $$\mu$$F
D
R = 25 $$\Omega$$, L = 1.5 H, C = 45 $$\mu$$F
EXAM MAP
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