- A[L-2 T A].
- B[L-1 T A].
- C[L T A].
- DNone.
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A battery of emf 10 V and internal resistance 3Ω is connected to a resistor as shown in the figure. If the current in the circuit is 0.5 A. then the resistance of the resistor will be

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(a) 19 W |
(b) 17 W |
(c) 10 W |
(d) 12 W |
Assertion : Photoelectric effect demonstrates the wave nature of light.
Reason : The number of photoelectrons is proportional to the frequency of light.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
The colour sequence in a carbon resistor is red, brown, orange and silver. The resistance of the resistor is
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(a) 21 × 103 ± 10% |
(b) 23 × 101 ± 10 % |
(c) 21 × 103 ± 5% |
(d) 12 × 103 ± 5% |
A moving charge will gain energy due to the application of
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(a) Electric field |
(b) Magnetic field |
(c) Both of these |
(d) None of these |