1
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
Kirchhoff's first rule $$\Sigma$$I = 0 and second rule $$\Sigma$$IR = $$\Sigma$$E (where the symbols have their usual meanings) are respectively based on -
A
conservation of momentum and conservation of charge
B
conservation of energy, conservation of charge
C
conservation of charge, conservation of momentum
D
conservation of charge, conservation of energy
2
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
The electric power consumed by a 220 V $$-$$ 100 W bulb when operated at 110 V is
A
25 W
B
30 W
C
35 W
D
45 W
3
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
If an ammeter is to be used in place of a voltmeter, then we must connect with the ammeter a -
A
low resistance in parallel
B
low resistance in series
C
high resistance in parallel
D
high resistance in series
4
CBSE 12th Physics (Term 1) Paper 2021-22
MCQ (Single Correct Answer)
+0.77
-0
A potential difference of 200 V is maintained across a conductor of resistance 100 $$\Omega$$. The number of electrons passing through it in 1s is
A
1.25 $$\times$$ 1019
B
2.5 $$\times$$ 1018
C
1.25 $$\times$$ 1018
D
2.5$$\times$$ 1016
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