Question

Study the following circuit and calculate the potential difference across 5 Ω resistor.

Answer 1

Answer:

12 ohm

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Answer 2

Explanation:

V = IR

R = 3 + 4 + 5 = 12 Ω

3 = I × 12

I = 3 / 12 = 1 / 4 amphere

Potentital difference across 5Ω resistor

V = IR

V = 1 / 4 × 5

= 5 / 4 V or 1.25 V ans.