ASVAB Electronics Information Practice Test 19556 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.48
Score	0%	70%

Review

A diode to an electronic circuit is like a _______________ to a city?

67% Answer Correctly

	one-way street
	traffic light
	highway
	parking lot

Solution

A diode allows current to pass easily in one direction and blocks current in the other direction.

The formula specifying Ohm's law is which of the following?

76% Answer Correctly

	V = I²R
	\(V = {I \over R}\)
	V = IR
	\(V = {R \over I}\)

Solution

Ohm's law specifies the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit: V = IR.

Voltage and current are __________ proportional.

66% Answer Correctly

	indirectly
	directly
	inversely
	not

Solution

Voltage (V) is the electrical potential difference between two points. Electrons will flow as current from areas of high potential (concentration of electrons) to areas of low potential. Voltage and current are directly proportional in that the higher the voltage applied to a conductor the higher the current that will result.

You would measure the amount of voltage between two points in a circuit with a(n):

83% Answer Correctly

	battery
	ammeter
	reostat
	voltmeter

Solution

Voltage (V) is the electrical potential difference between two points. A voltmeter is used to measure the voltage between two points in a circuit.

The valence shell of n insulator is how full of electrons?

56% Answer Correctly

	empty
	half full
	more than half full
	less than half full

Solution

Insulators have valence shells that are more than half full of electrons and, as such, are tightly bound to the nucleus and difficult to move from one atom to another.