JEE Mains · Physics · STD 12 - 3. current electricity
The ratio of heat dissipated per second through the resistance \(5 \Omega\) and \(10 \Omega\) in the circuit given below is _______.
- A \(1: 2\)
- B \(2: 1\)
- C \(4: 1\)
- D \(1: 1\)
Answer & Solution
Correct Answer
(B) \(2: 1\)
Step-by-step Solution
Detailed explanation
\(\frac{i_1}{i_2}=\frac{10}{5}=\frac{2}{1}\) \(\frac{P_1}{P_2}=\frac{i_1^2 R_1}{i_2^2 R_2}=\left(\frac{2}{1}\right)^2 \times \frac{5}{10}=\frac{2}{1}\)
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