An electric motor take 5 amperes current from a 220 volts supply line. Calculate the power of the motor and electrical energy consumed by it in 2 hours.
Answers
Answered by
3
Answer:
Power of the motor = 1100 Watt
Electrical energy consumed by it in 2 hours = 2.2 kw-h
Explanation:
As per the given data of question,we have,
Voltage supplied = 220 volts
Current supplied = 5 amperes
Time = 2 hours
As we know that,
Power = voltage × current
so,
⇒ Power = 220 × 5 = 1100 Watt
∴ Power of the motor = 1100 Watt
Also,
Electrical energy consumed is expressed in K-watt-hour.
Therefore,
Energy consumed = power × time
⇒ Energy consumed = 1100 watt × 2 hours = 2200 watt-hour
Since,
1 k-watt = 1000 watt
∴ Electrical energy consumed by it in 2 hours = 2.2 kw-h
Answered by
12
GIVEN
- Voltage (V) = 220 V
- Current (I) = 5 A
- Time (t) = 2 h = 2 x 60 x 60 = 7200 s
FORMULA TO BE USED
- P = V × I
- Energy consumed by the motor = P x t
POWER CALCULATION
- P = 220 x 5
- P = 1100 W
ENERGY CALCULATION
- E = 1100 x 7200
- E = 7.92 x 10⁶ J
RESULTS
- Power of the motor = 1100 W
- Energy consumed by the motor = 7.92 x 10⁶ J
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