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How much energy is transferred when 10 A current flows through a resistor of 5 ohm for 30 minutes?​
  • a)
    0.25 kWh
  • b)
    1.2 kWh
  • c)
    0.025 kWh
  • d)
    3.2 kWh
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
How much energy is transferred when 10 A current flows through a resis...
P = I2 R = (10)2 × 5 = 500 watt = 0.5 kW
 
t = 30 minute = 0.5 hr
 
E = P × t = 0.5 kW × 0.5 hr = 0.25 kWh
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Community Answer
How much energy is transferred when 10 A current flows through a resis...
Here..I=10A..R=5 Ohm.. T=30×60seconds Energy =work done.. =I^2 R T... =10×10×5×(30x60)Joule... =90 × 10^4 J.... Now,1KWH=3.6× 10^6 J.. SO,Requrired energy =(90×10^4)/(3.6×10^6)kwh =0.25KWH...
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