alleryদুটি 12 Ω প্রতিরোধক 12 V জুড়ে চলে: প্রথমে সিরিজে 1 মিনিট, তারপর সমান্তরালে 1 মিনিটের জন্য। মোট কত শক্তি ব্যবহৃত হয়?
A1800 J
B1080 J
C720 J
D1440 J
Answer & Solution
Correct answer: A. 1800 J
সিরিজ পর্যায় ব্যবহার করে (12²/24) × 60 = 360 J এবং সমান্তরাল পর্যায় ব্যবহার করে (12²/6) × 60 = 1440 J, মোট 1800 J।
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