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

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?

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?

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

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?

Answer is:

100

70) In an operational amplifier connected as an inverting amplifier, the virtual ground is at

Answer is:

Inverting terminal