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Q1. | In which of the following case the rating of the transformer to deliver 100 watts of d.c. power to a load, will be least? |

A. | Half wave rectifier [Wrong Answer] |

B. | Full wave rectifier [Wrong Answer] |

C. | Bridge type full wave rectifier [Wrong Answer] |

D. | Three phase full wave rectifier [Correct Answer] |

View Answer
Explanation:-
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**Also Read Similar Questions Below :**

⇒ Stability factor for S is given by for a fixed bias

1 + β

1 - β

1/β

β - 1

⇒ When a unit step voltage drives a lag network the output

remains constant at unit step value

increases exponentially from zero to final value

decreases exponentially from 1 to 0

either (b) of (c) depending on values of R and C

⇒ In a number system with radix

*r*, the decimal value of 110 is equal to 4

*r*. The decimal values of 111 and

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13, 3

8, 2

⇒ A class D chopper

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can operate in second quadrant only

can operate in either first or fourth quadrant

can operate in all the quadrants

⇒ In a bridge inverter

an output transformer is essential

an output transformer is not essential

an output transformer cannot be connected

an output transformer, if used, can improve the efficiency of the circuit

⇒ Beamwidth (between first nulls) will be for an antenna at 3 MHz with directivity of 100

140°

70°

210°

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⇒ A square in which each (

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⇒ Fields are said to be circularly polarised if their magnitudes are

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60°

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⇒ In photoelectric emission the maximum kinetic energy of emitted electron is proportional to

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V

_{B0}> V

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V

_{B0}= V

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⇒ A uniform plane wave travelling in air is incident on the plane boundary between air and another dielectric medium with ε

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0.33 ∠0°

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⇒ Which of the following statements is/are true for a good conductor of electricity?

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1, 2, 3 and 4

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2 and 3 only

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⇒

**Assertion (A):** The angular momentum of an atom is due to three contributions viz. orbital, electron spin and nuclear spin.

**Reason (R):** The nuclear spin magnetic moment is much more than electron spin magnetic moment.

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not correct explanation of A

A is true but R is false

A is false but R is true

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4 only

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⇒ Generally the gain of a transistor amplifier falls at high frequencies due to the

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JK

SR

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none of the above

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30

40

50