एक बल्ब 12 V की बैटरी से जुड़े होने पर 5 A विद्युत धारा लेता है। बल्ब की शक्ति कितनी है?

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RRB Group D 8 Sept 2022 Shift 2 Official Paper
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  1. 60 W
  2. 1.2 W
  3. 2.4 W
  4. 0.41 W

Answer (Detailed Solution Below)

Option 1 : 60 W
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RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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दिया गया है:

विभवांतर, V = 12V

प्रवाहित स्थिर विद्युत धारा, I = 5 A

प्रयुक्त सूत्र:

शक्ति (P) = विभवांतर (v) × विद्युत धारा (l)

गणना:

=> P = V × I

=> P = 12 × 5 = 60 W

अतः सही उत्तर '60 W' है।

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