மின்னழுத்தம் 220 V ஆக இருந்தால், 50 Ω மின்தடை கொண்ட ஒரு மின்விளக்கிற்கு தேவையான ஆற்றல் என்னவாக இருக்கும்?

This question was previously asked in
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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கருத்து

மின்விளக்கின் ஆற்றல் பின்வருமாறு வழங்கப்படுகிறது:

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

இங்கே, P = ஆற்றல் 

V = மின்னழுத்தம்

R = மின்தடை 

கணக்கீடு

கொடுக்கப்பட்டவை, V = 200 வோல்ட்

R = 50 Ω

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

P = 968 W

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