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Assertion : When a potential difference ...

Assertion : When a potential difference is applied across a conductor, free electrons start travelling with a constant speed called drift speed.
Reason : Due to potential difference an electric field is produced inside the conductor, which electrons experience a force.

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the assertion and the reason given: ### Step 1: Understand the Assertion The assertion states that when a potential difference is applied across a conductor, free electrons start traveling with a constant speed called drift speed. **Analysis**: - When a potential difference is applied, free electrons do not travel with a constant speed. Instead, they accelerate due to the electric field produced by the potential difference. They experience collisions with the lattice structure of the conductor, which causes them to lose energy and not maintain a constant speed. ### Step 2: Understand the Reason The reason states that due to the potential difference, an electric field is produced inside the conductor, which electrons experience as a force. **Analysis**: - This statement is true. When a potential difference is applied, an electric field is established within the conductor. This electric field exerts a force on the free electrons, causing them to accelerate. ### Step 3: Conclusion Based on the analysis: - The assertion is **false** because electrons do not travel with a constant drift speed; they accelerate and then collide, which affects their speed. - The reason is **true** because the electric field produced by the potential difference does exert a force on the electrons. ### Final Answer - Assertion: False - Reason: True Thus, the correct answer is that the assertion is false and the reason is true. ---
To solve the question, we need to analyze the assertion and the reason given: ### Step 1: Understand the Assertion The assertion states that when a potential difference is applied across a conductor, free electrons start traveling with a constant speed called drift speed. **Analysis**: - When a potential difference is applied, free electrons do not travel with a constant speed. Instead, they accelerate due to the electric field produced by the potential difference. They experience collisions with the lattice structure of the conductor, which causes them to lose energy and not maintain a constant speed. ...
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