Current Electricity

Bihar Board Class 12 · Physics · 60 past questions

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1. Q3 2026 Set A

   Which factor of the following does not affect resistance of a conducting wire ?

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2. Q5 2026 Set A

   Ohm's law does not apply, when

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3. Q12 2025 Set D

   The graph between voltage $V$ of a conductor and current $I$ is a straight line which makes an angle $\theta$…

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4. Q13 2025 Set D

   With the rise in temperature, the resistance of semiconductor

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5. Q14 2025 Set D

   Which of the following represents resistance, $R$? ($\rho$ = resistivity, $l$ = length of a material, $A$ =…

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6. Q20 2024 Set A

   The resistance of any wire is 500 $\Omega$. Its electrical conductivity will be

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7. Q40 2021 Set A

   Which of the following is the best conductor of electricity?

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8. Q44 2021 Set A

   Which of the following is correct for resistivity of a material ?

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9. Q51 2018

   The specific resistance of a conductor increases with…

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