ASVAB Electronics Information Practice Test 454127 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.59
Score	0%	72%

Review

1 Use Ohm's Law to calculate the value of voltage in this circuit if resistance is 40 Ω and current is 5 amps.

85% Answer Correctly

	100 V
	220 V
	202 V
	200 V

Solution

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

V = \( I \times R \) = \( 5 \times 40 \) = 200 V

The joule is a unit of measurement for:

67% Answer Correctly

	capacitance
	energy
	power
	resistance

Solution

The joule is a unit of measurement for energy.

A __________ electric current produces a magnetic field proportional to the amount of current flow.

61% Answer Correctly

	moving
	low voltage
	stationary
	high voltage

Solution

A moving electric current produces a magnetic field proportional to the amount of current flow. This magnetic field can be made stronger by winding the wire into a coil and further enhanced if done around an iron containing (ferrous) core.

From what energy do photovoltaic cells produce electrical energy?

68% Answer Correctly

	nuclear
	sun
	magnetic
	chemical

Solution

A photovoltaic cell (also known as a solar cell) converts energy from the sun into electrical energy.

The ampere is a unit of measurement for:

79% Answer Correctly

	energy
	power
	current
	inductance

Solution

Current is the rate of flow of electrons per unit time and is measured in amperes (A). A coulomb (C) is the quantity of electricity conveyed in one second by a current of one ampere.