JEE Mains · Physics · STD 12 - 3. current electricity
A resistor develops \(500\, J\) of thermal energy in \(20 \,s\) when a current of \(1.5\, A\) is passed through it. If the current is increased from \(1.5 \,A\) to \(3\, A\) what will be the energy (in \(J\)) developed in \(20\, s\).
- A \(1500\)
- B \(1000\)
- C \(500\)
- D \(2000\)
Answer & Solution
Correct Answer
(D) \(2000\)
Step-by-step Solution
Detailed explanation
\(500=(1.5)^{2} \times R \times 20\) \(E =(3)^{2} \times R \times 20\) \(E =2000 \,J\)
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