जर लागू व्होल्टेज 220 V असेल तर 50 Ω प्रतिरोधक असलेल्या बल्ब लोडसाठी आवश्यक शक्ती किती असेल?

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RRB ALP Electronics Mechanic 21 Jan 2019 Official Paper (Shift 3)
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  1. 828 W
  2. 1068 W
  3. 968 W
  4. 200 W

Answer (Detailed Solution Below)

Option 3 : 968 W
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संकल्पना

बल्बची शक्ती दिली जाते:

\(P={V^2\over R}\)

जेथे, P = शक्ती

V = व्होल्टेज

R = प्रतिकार

गणना

दिलेल्याप्रमाणे:, V = 200 व्होल्ट

R = 50 Ω

\(P={(220)^2\over 50}\)

P = 968 W

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