calculate the monthly bill for a heater of resistance 50ohm which is used on 200 volt main supply and used for 4 hours everyday.the energy cost is 2.50kwh
Answers
Answered by
11
Answer:
8 rupees
Explanation:
Given:
- Resistance of the heater = 50 ohms
- Voltage or potential difference across the heater = 200 volts
- Time the heater was on for each day = 4 hours
- Cost of each kwh= 2.5 rupees
To find :
- Monthly bill
Power = V²/r
Power = 200×200/50
Power = 40,000/50
Power = 800 Watts
Daily consumption = 800×4 = 3200 Watt hours = 3.2 Kilo watt hours
Rate per unit = rs. 2.5
Monthly bill = 2.5×3.2
Monthly bill = 8 rupees
The monthly bill of the heater is equal to 8 rupees
Answered by
87
Answer:
Given and Find:
- Calculate the monthly bill for a heater of resistance 50 ohm which is used on 200 volt main supply and used for 4 hours everyday. the energy cost is 2.50 kwh.
Using formula:
☆
Know terms:
- Power = (P)
- Voltage = (V)
- Resistance = (R)
- Watt = (W)
- Kilo watt = (Kw)
- Monthly bill = (a)
Calculations:
⇒
⇒
⇒
⇒
- 3200 W hrs = (3.2 KW hrs)
⇒
⇒
⇒
Therefore, 8 rupees is the monthly bill of the heater.
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