alleryदोन 12 Ω प्रतिरोधक 12 V ओलांडून धावतात: प्रथम 1 मिनिटांसाठी मालिकेत, नंतर 1 मिनिटांसाठी समांतर. एकूण किती ऊर्जा वापरली जाते?
A1800 J
B1080 J
C720 J
D1440 J
Answer & Solution
Correct answer: A. 1800 J
मालिका स्टेज (12²/24) × 60 = 360 J आणि समांतर स्टेज वापरते (12²/6) × 60 = 1440 J, एकूण 1800 J.
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