Current Electricity Charging Discharging Of Capacitors Question 549
Question: In an electric heater 4 amp current passes for 1 minute at potential difference of 250 volt, the power of heater and energy consumed will be respectively
[DPMT 2003]
Options:
A) 1 kW, 60 kJ
B) 0.5 kW, 30 kJ
C) 10 kW, 600 kJ
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
Power $ P=Vi,t=250\times 4=1000,W=1kW $ Energy = P ´ t = 1 kW ´ 60 sec = 60 kJ
BETA
