alleryStart learning →If a current of 2 A flows through a resistance of 5 ohm, the potential difference across it is
A10 V
B0.4 V
C2.5 V
D7 V
Answer & Solution
Correct answer: A. 10 V
1. Use V = I R.
2. Here I = 2 A and R = 5 ohm.
3. V = 2 * 5 = 10 V.
4. Hence the potential difference is 10 V.
_Source: Selina Concise Physics Class 9, Ch 9 Current Electricity (Mistral OCR'd PDF), section on Ohm's law_
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