Two capacitors R1 = 4\(\Omega\) and R2 = 5\(\Omega\) are connected in parallel across a...

JAMB 1994

Two capacitors R₁ = 4\(\Omega\) and R₂ = 5\(\Omega\) are connected in parallel across a potential difference. If P₁ and P₂ represent power dissipated in R ₁ and R₂ respectively, then the ratio P₁ : P₂ is

A. 4 : 5
B. 5 : 4
C. 16 : 25
D. 25 : 16

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Correct Answer: Option B

Explanation

P₁ = \(\frac{V^2_1}{R_1}\) and P₂ = \(\frac{V^2_2}{R_2}\)

P₁R₁ = P₂R₂

4P₁ = 5P₂

\(\frac{p_1}{p_2}\) = \(\frac{5}{4}\)

= 5 : 4

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Two capacitors R1 = 4\(\Omega\) and R2 = 5\(\Omega\) are connected in parallel across a...

Correct Answer: Option B

Explanation

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