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Question
List the names of three electical gadgets used n your house. Write their power, voltage rating and approximate time for which each one is used in a day. Hence find the electrical energy consumed by each in a month of 30 days.
List the names of three electical gadgets used n your house. Write their power, voltage rating and approximate time for which each one is used in a day. Hence find the electrical energy consumed by each in a month of 30 days.
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Solution
Appliance Power
(in watt) Voltage
( in volts) Time
(hours) Electrical energy
(E=p×t) Flourescent tube 40 220 120 0.48KWh Television set 120 220 4 0.48 KWh Refrigerator 150 220 24 3.6KWh
| Appliance | Power (in watt) | Voltage ( in volts) | Time (hours) | Electrical energy (E=p×t) |
| Flourescent tube | 40 | 220 | 120 | 0.48KWh |
| Television set | 120 | 220 | 4 | 0.48 KWh |
| Refrigerator | 150 | 220 | 24 | 3.6KWh |
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