EEI TECH EEI Tech Electrical Concepts 1

Question 1

What does Ohm's Law state?

Accepted Answer

Voltage equals current multiplied by resistance

Answer

Voltage equals power divided by current

Answer

Power equals voltage divided by resistance

Answer

Current equals resistance divided by voltage

Question 2

In a series circuit with three resistors, how does removing one resistor affect total resistance?

Accepted Answer

Total resistance decreases

Answer

Total resistance increases

Answer

Total resistance is unchanged

Answer

Total resistance becomes zero

Question 3

What is the purpose of a fuse in an electrical circuit?

Accepted Answer

Protect against overcurrent by breaking the circuit

Answer

Increase voltage

Answer

Store energy

Answer

Reduce frequency

Question 4

Which type of current flows in one direction only?

Accepted Answer

DC (Direct Current)

Answer

AC (Alternating Current)

Answer

Reactive current

Answer

Inductive current

Question 5

What happens to current in a parallel circuit when one branch is opened (disconnected)?

Accepted Answer

Current in other branches is unaffected

Answer

All current stops

Answer

Total voltage drops

Answer

All branches open

Question 6

The standard US residential voltage is approximately:

Accepted Answer

120 V

Answer

12 V

Answer

48 V

Answer

240 V AC (single phase)