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प्रश्न
What is the resistance of a conductor through which a current of 0.5 A flows when a potential difference of 2V is applied across its ends?
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उत्तर
Given, I = 0.5 A
Potential difference, V = 2 V
Applying ohm's law, V = IR
Or, R = `"V"/"I" = 2/0.5 = 4 Omega`
Hence, the resistance of a conductor is 4 Ω.
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संबंधित प्रश्न
What will be the change in the current if the potential difference is kept constant and the resistance of the circuit is made four times?
- It will remain unchanged.
- It will become four times.
- It will become one-fourth.
- It will become half.
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