Podcast
Questions and Answers
What instrument is used to measure the amount of electrical energy consumed in a house?
What instrument is used to measure the amount of electrical energy consumed in a house?
- Electric meter (correct)
- Voltage regulator
- Circuit breaker
- Power generator
Which of the following units is used to measure electric energy?
Which of the following units is used to measure electric energy?
- Watts
- Amperes
- Joules (correct)
- Volts
In the formula E = P × t, what does the variable P represent?
In the formula E = P × t, what does the variable P represent?
- Voltage applied
- Time measured
- Energy consumed
- Power used (correct)
How can energy consumption be calculated according to the formula provided?
How can energy consumption be calculated according to the formula provided?
What is the time variable 't' measured in when calculating electric energy?
What is the time variable 't' measured in when calculating electric energy?
What is the formula for calculating electrical energy consumption?
What is the formula for calculating electrical energy consumption?
If a device consumes 2000 Watts for 300 seconds, what is the electrical energy consumption in Joules?
If a device consumes 2000 Watts for 300 seconds, what is the electrical energy consumption in Joules?
What is the total time in seconds when using a device for 15 minutes?
What is the total time in seconds when using a device for 15 minutes?
How many Joules of energy does a 1000 Watt device consume when used for 2 hours?
How many Joules of energy does a 1000 Watt device consume when used for 2 hours?
What is the energy consumed by a 1500 Watt hairdryer used for 20 minutes?
What is the energy consumed by a 1500 Watt hairdryer used for 20 minutes?
Flashcards
Electrical Energy Consumption
Electrical Energy Consumption
The amount of electrical energy used over a period of time.
Electric Power
Electric Power
The rate at which electrical energy is transferred or used. Measured in Watts (W).
Time
Time
The duration for which an electrical device is in operation. Measured in seconds (s) or other time units.
Joule (J)
Joule (J)
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Formula for Electrical Energy Consumption
Formula for Electrical Energy Consumption
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Power
Power
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Electrical Energy Consumption Formula
Electrical Energy Consumption Formula
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