In the given figure, equivalent resistance between A and B will be
|
(a) |
(b) |
(c) |
(d) |
In the given figure, equivalent resistance between A and B will be
|
(a) |
(b) |
(c) |
(d) |
(a)
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It is easier to start a car engine on a hot day than on a cold day. This is because the internal resistance of the car battery
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(a) Decreases with rise in temperature |
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(b) Increases with rise in temperature |
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(c) Decreases with a fall in temperature |
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(d) Does not change with a change in temperature |
A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side on its principal axis, the intensity of light:
Average energy stored in a pure inductance L when a current i flows through it, is
|
(a) |
(b) |
(c) |
(d) |
A biconvex lens forms a real image of an object placed perpendicular to its principal axis. Suppose the radii of curvature of the lens tend to infinity. Then the image would
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(a) Disappear |
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(b) Remain as real image still |
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(c) Be virtual and of the same size as the object |
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(d) Suffer from aberrations |
For the given circuit of PN-junction diode, which of the following statement is correct

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(a) In forward biasing the voltage across R is V |
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(b) In forward biasing the voltage across R is 2V |
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(c) In reverse biasing the voltage across R is V |
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(d) In reverse biasing the voltage across R is 2V |
Two batteries, one of emf 18 volts and internal resistance 2Ω and the other of emf 12 volt and internal resistance 1 Ω, are connected as shown. The voltmeter V will record a reading of
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(a) 15 volt |
(b) 30 volt |
(c) 14 volt |
(d) 18 volt |