Unit Of Electric Power MDCAT Quiz: The watt, W, is the unit of electric power, which is defined as one joule per second. It is the rate at which electrical energy is transferred into another form—like heat, light, or mechanical energy—in an electric circuit. Electric power can be expressed using the formula P=IV, where P is power in watts, I is current in amperes, and V is voltage in volts. Knowledge of the unit of electric power is very essential for MDCAT students since it helps them solve problems relating to energy consumption, circuit analysis, and power dissipation in electrical devices.
Test Your Knowledge with an MDCAT Quiz
An MDCAT Quiz on the unit of electric power is a good way to test your understanding and improve your problem-solving skills. These quizzes will challenge you to calculate power in different electrical scenarios, such as in resistive circuits or devices like light bulbs and motors. By practicing these quizzes, you will build a solid foundation in electric power and prepare effectively for the MDCAT exam.
- Test Name: Unit Of Electric Power MDCAT Quiz
- Type: Quiz Test
- Total Questions: 30
- Total Marks: 30
- Time: 30 minutes
Note: Answer of the questions will change randomly each time you start the test, once you are finished, click the View Results button.
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Free Flashcards for Efficient Revision
Use Free Flashcards to quickly review the unit of electric power and related formulas. These flashcards focus on the definition of a watt, the relationship between power, current, and voltage, and the practical applications of electric power in circuits. They are useful for last-minute revisions to retain important information for the MDCAT exam.
The unit of electric power is:
Watt
One watt is equal to:
One joule per second
The power consumed by an electrical device is measured in:
Watts
Electric power is defined as:
Rate at which energy is used
The SI unit of electric power is:
Watt
A kilowatt is equal to:
1,000 watts
A megawatt is equal to:
1,000,000 watts
The energy consumed by an appliance in one hour at 100 watts is:
100 watt-hours
The electric power consumed by a 100-watt bulb is:
100 watts
Power in an electrical circuit is measured in:
Watts
One horsepower is equal to:
746 watts
The power output of a 1-horsepower motor is:
746 watts
The unit of power used in electrical calculations is:
Watt
If the voltage is 10 V and the current is 5 A, the power is:
50 watts
The power of an electrical device can be calculated by:
P = VI
The unit of electric energy is:
Joule
The total energy consumed by an electrical device is the product of:
Power and time
The energy consumed by an appliance of 60 watts over 2 hours is:
120 watt-hours
The unit for electric power is named after:
James Watt
Electric power is proportional to:
Current and voltage
The power factor of an AC circuit is:
The ratio of real power to apparent power
The unit of electrical energy in large-scale power consumption is:
Kilowatt-hour
Power consumption is usually measured in:
Kilowatt-hours
The power in an electric circuit is calculated by:
P = I²R
The standard unit for energy in an electrical system is:
Watt-hour
The energy consumed by an appliance can be calculated as:
E = Pt
The relationship between energy and power is:
Energy = Power × Time
A watt is a unit of:
Power
The energy used by a 500-watt appliance for 3 hours is:
1,500 watt-hours
The power of an electric heater is 200 watts. The energy consumed in 4 hours is:
800 watt-hours
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