Electronic Principles - Section 3 | Multiple Questions and Answers

31.	A device that converts chemical energy to electrical energy is called a:

	A.	solar cell
	B.	thermocouple
	C.	chemical cell
	D.	electric device

32.	Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?

	A.	37.4 V
	B.	35.4 V
	C.	38.74 V
	D.	30.4 V

33.	What is the difference between a conductor and an insulator?

	A.	A conductor allows current to flow much easier than an insulator does
	B.	An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
	C.	An insulator allows current to flow much easier than a conductor does
	D.	The difference between conductors and insulators depends on how they are used

34.	A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage?

	A.	15 V
	B.	16 V
	C.	7.5 V
	D.	8 V