- APurification
- BAmplification
- CRectification
- DCurrent Amplification
Explanation:
The process by which ac is converted into dc is known as "Rectification".
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
If a proton and anti-proton come close to each other and annihilate, how much energy will be released
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(a) 1.5 |
(b) 3 |
(c) 4.5 |
(d) None of these |
The minimum charge on an object is
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(a) 1 coulomb |
(b) 1 stat coulomb |
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(c) |
(d) |
Radioactivity was discovered by
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(a) Becquerel |
(b) Pierre Curie |
(c) Roentgen |
(d) Rutherford |
An object is at a distance of 0.5 m in front of a plane mirror. Distance between the object and image is
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(a) 0.5 m |
(b) 1 m |
(c) 0.25 m |
(d) 1.5 m |
Assertion : Red shift confirms that the universe is expanding
Reason : Wavelength of red light is maximum in the visible region
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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. |
Assertion : A transistor amplifier in common emitter configuration has a low input impedence.
Reason : The base to emitter region is forward biased.
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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. |