BMST - Basic Math and Science Electrical Circuits and Ohm's Law Questions and Answers 2

Question 1

According to Ohm's Law, if voltage is 12V and resistance is 4Ω, what is the current?

Accepted Answer

3A

Answer

48A

Answer

8A

Answer

0.33A

Question 2

In a series circuit with three resistors of 2Ω, 3Ω, and 5Ω, what is the total resistance?

Accepted Answer

10Ω

Answer

0.97Ω

Answer

3.33Ω

Answer

30Ω

Question 3

What is the unit of electrical resistance?

Accepted Answer

Ohm (Ω)

Answer

Ampere (A)

Answer

Volt (V)

Answer

Watt (W)

Question 4

What happens to current in a circuit if resistance doubles while voltage stays constant?

Accepted Answer

Current is halved

Answer

Current doubles

Answer

Current stays the same

Answer

Current quadruples

Question 5

In a parallel circuit, what is true about the voltage across each branch?

Accepted Answer

It is the same across all branches

Answer

It is different for each branch

Answer

It increases with each branch

Answer

It equals zero

Question 6

What is electrical power measured in?

Accepted Answer

Watts

Answer

Ohms

Answer

Amperes

Answer

Joules