ASVAB Electronics Information Practice Test 453492 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.16
Score	0%	63%

Review

Which of the following statements about electrical resistance is true?

75% Answer Correctly

	the less resistive the conductor is the slower electron flow will be
	electrically conductive materials have no resistive properties
	the more resistive the conductor is the faster electron flow will be
	the more resistive the conductor is the slower electron flow will be

Solution

Resistance is opposition to the flow of current. As resistance increases, current decreases as resistance and current are inversely proportional.

2 Use Ohm's Law to calculate the value of current in this circuit if voltage is 70 volts and resistance is 10 Ω.

80% Answer Correctly

	8.5 A
	7 A
	10 A
	14 A

Solution

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

Solved for current, I = \( \frac{V}{R} \) = \( \frac{70}{10} \) = 7 A

Inductance is a factor in which of the following?

44% Answer Correctly

	determining energy stored by a capacitor
	batteries connected in serial
	an AC circuit
	a DC circuit

Solution

Inductance is a property of an AC circuit (or a component in an AC circuit) that quantifies resistance to changes in current. The current in an AC circuit is continuously changing and inductive reactance (the opposition to change) depends both on the inductance of the circuit or component and the rate at which the current is changing.

Voltage and current are __________ proportional.

66% Answer Correctly

	directly
	indirectly
	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.

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

51% Answer Correctly

	triple
	less than
	double
	more than

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.