Electronic Principles - Section 4 | Multiple Questions and Answers

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Electronic Principles - Section 4 Multiple Questions and Answers.

26.	Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?

	A.	P = IE
	B.	P = E2/R
	C.	P = I2R
	D.	I = P/E

27.	If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage?

	A.	0 V
	B.	36 V
	C.	40 V
	D.	60 V

28.	A device that converts light energy to electrical energy is called a:

	A.	thermocouple
	B.	solar cell
	C.	photodiode
	D.	photo transistor

29.	How much current flows through a 60-W light bulb that is operating at 120 V?

	A.	0.5A
	B.	180 A
	C.	2:00 AM
	D.	7200 A

30.	What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it?

	A.	3 W
	B.	6 W
	C.	64 W
	D.	122 W

Read More :

» Electronic Principles - Section 1

» Electronic Principles - Section 2

» Electronic Principles - Section 3

» Electronic Principles - Section 4

» Electronic Principles - Section 5

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