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GUJCET · Physics · Current Electricity
The emf of a car battery is 12 V . If internal resistance of battery is \(0.4 \Omega\), then maximum power drawn from battery is _________ w.
- A zero
- B 360
- C 4.8
- D 30
Answer & Solution
Correct Answer
(B) 360
Step-by-step Solution
Detailed explanation
(B)
power \(P =\frac{\varepsilon^2}{r}\)
\(\begin{array}{l} P =\frac{(12)^2}{0.4} \\ P =360 W\end{array}\)
power \(P =\frac{\varepsilon^2}{r}\)
\(\begin{array}{l} P =\frac{(12)^2}{0.4} \\ P =360 W\end{array}\)
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