P4.2 Electrical circuits

Question 1

What is the unit of electric current?

Answer 1

Ampere (A)

Question 2

True or False: Voltage is the measure of electric potential difference.

Answer 2

True

Question 3

Fill in the blank: The formula for calculating resistance in a circuit is _____ = Voltage / Current.

Answer 3

Resistance

Question 4

What is Ohm’s Law?

Answer 4

V = I × R (Voltage = Current × Resistance)

Question 5

Which component is used to store electrical energy in an electric field?

Answer 5

Capacitor

Question 6

Multiple Choice: What does a resistor do in a circuit? A) Increases current B) Decreases current C) Stores energy

Answer 6

B) Decreases current

Question 7

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

Answer 7

10Ω

Question 8

True or False: In a parallel circuit, the voltage across all components is the same.

Answer 8

True

Question 9

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

Answer 9

To protect the circuit from overcurrent.

Question 10

Fill in the blank: The power consumed in an electrical circuit can be calculated using the formula _____ = Voltage × Current.

Answer 10

Power