NAPT - Navy Advanced Programs Electrical and Electronic Theory Questions and Answers

Question 1

A technician is analyzing a DC series circuit containing three resistors: R1 = 10 Ω, R2 = 20 Ω, and R3 = 30 Ω, connected to a 120 V source. What is the total current flowing through the circuit?

Accepted Answer

2.0 A

Answer

6.0 A

Answer

12.0 A

Answer

0.5 A

Question 2

Which of the following statements is a fundamental characteristic of a parallel circuit?

Accepted Answer

The voltage across each component is the same.

Answer

The total resistance is the sum of all individual resistances.

Answer

The current is the same through every component.

Answer

The circuit provides only one path for current flow.

Question 3

An uncharged capacitor is connected to a DC power source. What is the initial behavior of the current when the circuit is first energized?

Accepted Answer

The current is at its maximum and then decays to zero.

Answer

The current is zero and remains zero.

Answer

The current slowly ramps up from zero to a maximum value.

Answer

The current is at a steady, constant value determined by the circuit's resistance.

Question 4

An inductor is placed in a circuit where the current is increasing. According to Lenz's Law, the inductor will generate a voltage (back EMF) that:

Accepted Answer

opposes the increase in current.

Answer

aids the increase in current.

Answer

has no effect on the current.

Answer

creates a magnetic field in the same direction as the original field.

Question 5

At a junction (or node) in an electrical circuit, two currents of 3 A and 5 A are flowing into the node. If one current of 2 A is flowing out of the node, what must be the value and direction of the fourth current according to Kirchhoff's Current Law (KCL)?

Accepted Answer

6 A, flowing out

Answer

10 A, flowing in

Answer

6 A, flowing in

Answer

10 A, flowing out

Question 6

What is the primary difference between Alternating Current (AC) and Direct Current (DC)?

Accepted Answer

AC periodically reverses its direction of flow, while DC flows in only one direction.

Answer

AC is only used for high-power applications, while DC is for low-power electronics.

Answer

AC flows in one constant direction, while DC periodically reverses direction.

Answer

AC has a constant voltage, while DC voltage varies sinusoidally.

A technician is analyzing a DC series circuit containing three resistors: R1 = 10 Ω, R2 = 20 Ω, and R3 = 30 Ω, connected to a 120 V source.What is the total current flowing through the circuit?

A technician is analyzing a DC series circuit containing three resistors: R1 = 10 Ω, R2 = 20 Ω, and R3 = 30 Ω, connected to a 120 V source.
What is the total current flowing through the circuit?