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ISRO
ISRO Technician-B
Electrician
ISRO Technician-B Electrician 2019
65

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

65) The constituent having highest percentage by weight in Permalloy is

Iron

Boron

Cobalt

Nickel

Answer is:

Nickel

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

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Related ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

66) Which of the following is true for leakage current of a diode?

Increases with temperature

Produced by minority carriers

Occurs in a reverse biased diode

All of the above

Answer is:

All of the above

67) The peak voltage at the secondary of the transformer of a half wave rectifier is 20V. What is the average voltage of the rectified wave?

6.36V

14.14V

12.72V

20V

Answer is:

6.36V

68) In a transistor, the collector current is 4.5mA and base current is 2 Micro Ampare. The emitter current is

4.52mA

4.48mA

4.5mA

None of the above

Answer is:

4.52mA

69) A transistor is connected in common emitter configuration. Collector current is 1 mA and emitter current is 1.01mA. What is the DC current gain beta of the transistor?

1.01

0.99

100

101

Answer is:

100

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

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