POWER SUPPLY CIRCUITS - Practice Mode

1) Which impurity is added to form P - type semiconductor material?

Arsenic Gallium Antimony Phosphorus

Correct Answer: Gallium

2) Which impurity is added to pure semiconductor to form N-type material?

Boron Indium Arsenic Gallium

Correct Answer: Arsenic

3) What is the output frequency of the pulsating DC in a two diode fullwave rectifier?

Half of the input A/C frequency Double the input A/C frequency Same frequency of the A/C input Three times the input A/C frequency

Correct Answer: Double the input A/C frequency

4) What is the name of the process of converting AC into DC voltage?

Inverting Rectifying Amplifying Demodulating

Correct Answer: Rectifying

5) What is the effect on the output voltage in a bridge rectifier circuits, with one diode open?

Very low voltage No output DC voltage Full output rated voltage Half of the rated output voltage

Correct Answer: Half of the rated output voltage

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