EEI TECH EEI Tech Electrical Concepts

Question 1

What does Ohm's Law state?

Accepted Answer

Voltage equals current multiplied by resistance

Answer

Ohm's Law states V = I × R (Voltage = Current × Resistance).

Question 2

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

Accepted Answer

Total resistance decreases

Answer

In a series circuit, total resistance is the sum of all resistors; removing one reduces the total.

Question 3

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

Accepted Answer

Protect against overcurrent by breaking the circuit

Answer

A fuse melts and opens the circuit when current exceeds a safe level, protecting equipment and wiring.

Question 4

Which type of current flows in one direction only?

Accepted Answer

DC (Direct Current)

Answer

DC (Direct Current) flows in one constant direction, unlike AC which alternates direction.

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

In a parallel circuit, each branch operates independently; opening one branch does not interrupt others.

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