# Assertion and Reason Questions for Class 10 Science Chapter 12 Electricity PDF

Electricity Class 10 Assertion and Reason Type Questions have been prepared by CBSE Experts. Solve Assertion and Reason Questions for Class 10 Science Chapter 12 Electricity for better understanding. Assertion Reason question for Class 10 Science Chapter 12 is prepared on the latest exam pattern.

Students can solve Assertion and Reason Questions for Class 10 Science to boost their preparation Electricity 10 Assertion and Reason Type Questions are provided to help students tackle the question asked in the board exam.

# Electricity Class 10 Assertion Reason Questions

The following questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Q.1. Assertion (A) : Good conductors of heat are also good conductors of electricity and vice versa.
Reason (R) : Mainly electrons are responsible for conduction.

(a) Both A and R are true and R is the correct explanation of A.

Q.2. Assertion (A) : When a wire is stretched to three times of its length, its resistance becomes 9 times.
Reason (R) : Resistance is directly proportional to length of wire.

(b) Both A and R are true but R is not the correct explanation of A.

Q.3. Assertion (A) : A bird perches on a high power line and nothing happens to the bird.
Reason (R) : The circuit is incomplete for the bird sitting on high power line.

(a) Both A and R are true and R is the correct explanation of A.

Q.4. Assertion (A) : The connecting wires are made of copper.
Reason (R) : The electrical conductivity of copper is high.

(a) Both A and R are true and R is the correct explanation of A.

Q.5. Assertion (A) : Heater wire must have high resistance and high melting point.
Reason (R) : If resistance is high, the electric conductivity will be less.

(b) Both A and R are true but R is not the correct explanation of A.

Q.6. Assertion (A) : Electron has a negative charge.
Reason (R) : Electrons move always from a region of higher potential to a region of lower potential.

(c) A is true but R is false.

Q.7. Assertion (A) : A current carrying wire should be charged.
Reason (R) : The current in a wire is due to flow of free electrons in a definite direction.

(d) Assertion is false but reason is true

Q.8. Assertion (A) : The wires supplying current to an electric heater are not heated appreciably.
Reason (R) : Resistance of connecting wires is very small and H<< R.

(a) Both A and R are true and R is the correct explanation of A.

Q.9. Assertion (A) : The coil of a heater is cut into two equal halves and only one of them is used into heater. The heater will now require half the time to produce the same amount of heat.
Reason (R) : The heat produced is directly proportional to square of current.

(b) Both A and R are true but R is not the correct explanation of A.

Q.10. Assertion (A) : The fuse is placed in series with the device.
Reason (R) : Fuse consists of a piece of wire made of a metal or an alloy of appropriate melting point.

(b) Both A and R are true but R is not the correct explanation of A.

We hope the given Electricity Class 10 Assertion and Reason Questions will help you. Please practice Electricity Class 10 Assertion and Reason Questions to boost your score in Board Exam. If you have any queries regarding Electricity Class 10 Science Assertion and Reason Questions, contact us and we will get back to you soon.

By Team of CBSE Expert