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CBSE Class 12 Physics 2023 Delhi Set 1 Paper
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Question : 24
Total: 35
The potential difference applied across a given conductor is doubled. How will this affect (i) the mobility of electrons and (ii) the current density in the conductor? Justify your answers.
Solution: 👈: Video Solution
(i) Mobility ∝ 1 ∕
So, if potential difference is doubled, mobility will be halved.
(ii) Current density∝
So, if potential difference is doubled, current density will also be double.
So, if potential difference is doubled, mobility will be halved.
(ii) Current density
So, if potential difference is doubled, current density will also be double.
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