1
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
A
0.4
B
0.5
C
0.8
D
1.0
2
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$$\sqrt 2 A$$
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A small signal voltage V(t) = V0 sin$$\omega $$t is applied across an ideal capacitor C
A
Current $$I(t)$$ is in phase with voltage $$V(t)$$.
B
Current $$I(t)$$ leads voltage V(t) by 180o
C
Current $$I(t)$$, legs voltage $$V(t)$$ by 90o.
D
Over a full cycle the capacitor C foes not consume any energy from the voltage source.
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
An inductor 20 mH, a capacitor 50 $$\mu F$$ and a resistor 40 $$\Omega $$ are connected in series across a source of emf V = 10 sin 340t. The power loss in A.C. circuit is
A
0.76 W
B
0.89 W
C
0.51 W
D
0.67 W
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