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Electrician
Electrician Set-2
Electronic Practice
47

Electronic Practice MCQ with Answers

47) How the input impedance of CRO can be increased?

By adding resistance to CRO probe

By adding resistance to trigger level circuit

By increasing time/base attenuator switch position

By increasing volts/cm attenuator switch position

Answer is:

By adding resistance to CRO probe

Electronic Practice MCQ with Answers

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Related Electronic Practice MCQ with Answers

48) What is the frequency of the displayed signal on CRO screen covered by 5 division with a time base setting of 0.2 micro seconds?

1.0 KHz

10.0 KHz

100.0 KHz

1000.0 KHz

Answer is:

1000.0 KHz

49) What defect will occur in the radio, if the pulsations are not removed from the input of the rectifier?

Improper tuning

No response

Humming sound

Works with low volume

Answer is:

Humming sound

50) How does the depletion region behave?

As resistor

As insulator

As conductor

As semi conductor

Answer is:

As insulator

51) What is the power gain of CE amplifier with a voltage gain of 66 and Beta of the transistor is 100?

1.5

166

0.66

6600

Answer is:

6600

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