1
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
The equivalent resistance between A and B of the network shown in figure is

A
3R $$\Omega$$
B
$$\left( {{3 \over 2}} \right)$$R $$\Omega$$
C
2R $$\Omega$$
D
$$\left( {{2 \over 3}} \right)$$R $$\Omega$$
2
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
A bar magnet has magnetic dipole moment $$\overrightarrow M $$. Its initial position is parallel to the direction of uniform magnetic field $$\overrightarrow B $$. In this position, the magnitudes of torque and force acting on it respectively are -
A
0 and MB
B
MB and MB
C
0 and 0
D
| $$\overrightarrow M $$ $$\times$$ $$\overrightarrow B $$ | and 0
3
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
Two charges 14 $$\mu$$C and $$-$$4 $$\mu$$C are placed at ($$-$$12 cm, 0, 0) and (12 cm, 0, 0) in an external electric field $$E = \left( {{B \over {{r^2}}}} \right)$$, where B = 1.2 $$\times$$ 106 N/(cm2) and r is in metres. The electrostatic potential energy of the configuration is
A
97.9 J
B
102.1 J
C
2.1 J
D
$$-$$97.9 J
4
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
A 300 $$\Omega$$ resistor and a capacitor of $$\left( {{{25} \over \pi }} \right)$$ $$\mu$$F are connected in series to a 200 V $$-$$ 50 Hz ac source. The current in the circuit is -
A
0.1 A
B
0.4 A
C
0.6 A
D
0.8 A
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