ASVAB Electronics Information Practice Test 457132 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.34
Score	0%	67%

Review

1 Use Ohm's Law to calculate the value of voltage in this circuit if resistance is 70 Ω and current is 5.5 amps.

85% Answer Correctly

	385 V
	390 V
	423.5 V
	770 V

Solution

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

V = \( I \times R \) = \( 5.5 \times 70 \) = 385 V

Which of the following is a characteristic of batteries connected in series?

61% Answer Correctly

	total voltage equals the average of the individual battery voltages
	the positive terminal of one battery is connected to the positive terminal of the next
	two connections are made between each adjacent battery
	total voltage equals the sum of the individual battery voltages

Solution

You can multiply the voltage or the current supplied by individual batteries by connecting them together either in series or in parallel. The characteristics of batteries connected in series are that total voltage equals the sum of the individual battery voltages, total current equals the average of the individual battery currents, the positive terminal of one battery is connected to the negative terminal of the next, and one connection is made between each adjacent battery.

The diameter of a number 12 wire is __________ the diameter of a number 6 wire?

52% Answer Correctly

	more than
	less than
	double
	triple

Solution

The larger the number the smaller the diameter of the wire. So, the diameter of a number 12 wire is less than the diameter of a number 6 wire.

4 Use Ohm's Law to calculate the value of resistance in this circuit if voltage is 150 volts and current is 1.5 amps.

80% Answer Correctly

	50 Ω
	100 Ω
	107 Ω
	101.5 Ω

Solution

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

Solved for resistance, R = \( \frac{V}{I} \) = \( \frac{150}{1.5} \) = 100 Ω

This circuit component symbol represents a(n):

57% Answer Correctly

	capacitor
	transformer
	DC source
	AC source

Solution

Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery.