Electrical Resistance -Multiple Choice Questions Quiz

Interactive MCQs on “Electrical Resistance”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is electrical resistance?

(a) The force that opposes the flow of electric current in a circuit
(b) The property of a material to conduct electricity
(c) The voltage drop across a resistor in a circuit
(d) The power consumed by an electrical device

Question 2: What is the relationship between electrical resistance (R), voltage (V), and current (I) in a circuit?

(a) R = V × I
(b) R = V / I
(c) R = I / V
(d) R = V + I

Question 3: Which material has the lowest electrical resistance?

(a) Copper
(b) Aluminum
(c) Silver
(d) Rubber

Question 4: What happens to the electrical resistance of a conductor when its length is doubled while keeping its cross-sectional area constant?

(a) It doubles
(b) It halves
(c) It remains unchanged
(d) It increases four times

Question 5: How does the electrical resistance of a conductor change with an increase in its cross-sectional area?

(a) It increases
(b) It decreases
(c) It remains unchanged
(d) It becomes zero

Question 6: Which of the following factors does not affect the electrical resistance of a conductor?

(a) Temperature
(b) Length of the conductor
(c) Cross-sectional area of the conductor
(d) Type of material

Question 7: In which unit is electrical resistance measured?

(a) Ohm (Ω)
(b) Volt (V)
(c) Ampere (A)
(d) Watt (W)

Question 8: What happens to the electrical resistance of a conductor when its temperature increases?

(a) It decreases
(b) It remains unchanged
(c) It becomes zero
(d) It increases

Question 9: Which of the following materials is commonly used for making the filament of an incandescent light bulb due to its high resistance?

(a) Copper
(b) Aluminum
(c) Tungsten
(d) Silver

Question 10: What happens to the electrical resistance of a wire if its diameter is reduced by half while keeping its length constant?

(a) It doubles
(b) It halves
(c) It remains unchanged
(d) It increases four times