alleryدو 12 Ω ریزسٹرس 12 V پر چلتے ہیں: پہلے سیریز میں 1 منٹ کے لیے، پھر 1 منٹ کے لیے متوازی۔ کل توانائی کا استعمال کیا جاتا ہے؟
A1800 J
B1080 J
C720 J
D1440 J
Answer & Solution
Correct answer: A. 1800 J
سیریز کا مرحلہ (12²/24) × 60 = 360 J اور متوازی مرحلہ استعمال کرتا ہے (12²/6) × 60 = 1440 J، کل 1800 J۔
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