BMST - Basic Math and Science Electrical Circuits and Ohm's Law Questions and Answers

Question 1

Ohm's Law describes the fundamental relationship between which three electrical quantities?

Accepted Answer

Voltage, Current, and Resistance

Answer

Power, Current, and Capacitance

Answer

Charge, Time, and Inductance

Answer

Resistance, Frequency, and Power

Question 2

A simple circuit has a 24-volt power source and a single 8-ohm resistor. According to Ohm's Law, what is the current flowing through the circuit?

Accepted Answer

3 Amperes

Answer

192 Amperes

Answer

0.33 Amperes

Answer

32 Amperes

Question 3

If three resistors are connected end-to-end in a single path, this configuration is known as a series circuit. What is the total resistance of a series circuit containing a 5 Ω, a 10 Ω, and a 15 Ω resistor?

Accepted Answer

30 Ω

Answer

2.73 Ω

Answer

15 Ω

Answer

750 Ω

Question 4

Which of the following statements is a key characteristic of a simple parallel circuit?

Accepted Answer

The voltage is the same across every component.

Answer

The current is the same through every component.

Answer

The total resistance is the sum of the individual resistances.

Answer

Removing one component will always break the entire circuit.

Question 5

In a circuit with a constant resistance, if the voltage is doubled, what is the resulting effect on the current?

Accepted Answer

The current is doubled.

Answer

The current is halved.

Answer

The current remains the same.

Answer

The current is quadrupled.

Question 6

What are the correct standard international (SI) units for electrical potential difference (voltage), electric current, and electrical resistance, respectively?

Accepted Answer

Volt, Ampere, Ohm

Answer

Ampere, Ohm, Volt

Answer

Watt, Ampere, Volt

Answer

Ohm, Volt, Watt