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प्रश्न
State macroscopic form of Ohm’s law.
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उत्तर
The macroscopic form of Ohm’s law is V = IR
Where V → Potential difference
I → Current
R → Resistance.
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संबंधित प्रश्न
When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.
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Choose the correct alternative.
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| Voltage (V) | 10 V | 20 V | 30 V |
| Current (I) | 2 A | 3 A | 4 A |
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- Justify your answer.
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