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Question
A resistor of 6 Ω is connected in series with another resistor of 4 Ω. A potential difference of 20 V is applied across the combination. Calculate
- the current in the circuit and
- the potential difference across the 6 Ω resistor.
Numerical
Solution
Total resistance in series R = 6 + 4 = 10 Ω
V = 20 V
- ∴ I = `"V"/"R"`
= `20/10`
= 2 A - potential difference across 6 Ω is V = IR
V = 2 × 6
V = 12 V
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