Electrical Power Quiz

How do we calculate the voltage in an electrical circuit?

• V = I x R

• P = I2 x R

• P = I x I x R

• P = I x V

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Year 12

What is the formula for calculating resistance in an electrical circuit?

• R = V x I

• R = V / I

• R = I / V

• R = V + I

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Year 12

How do we calculate the current in an electrical circuit?

• P = V x R

• I = V2 / R

• P = I x V

• I = V / R

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Year 12

What is the formula for calculating electrical power?

• P = V - I

• P = V + I

• P = V / I

• P = V x I

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Year 12

What is the unit of measurement for electrical power?

• Watts

• Amps

• Volts

• Ohms

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Year 12

What is the product of Voltage and Current in an electrical circuit?

• Ohms

• Power

• Amps

• Resistance

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Year 12

What is the electrical power consumption of a household appliance rated at 120V and drawing a current of 5A?

• 600 watts

• 24 watts

• 125 watts

• 0.04 watts

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Year 12

What is the electrical power consumption when the voltage is 230V and the current is 8.7A?

• 2,500 watts

• 3,000 watts

• 1,500 watts

• 2,001 watts

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Year 12

How many amperes will a 1600W appliance use with a supply voltage of 230 V

(to the nearest whole number)?

• 13 A

• 3 A

• 7 A

• 10 A

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Year 12

What is the unit of measurement for electrical resistance?

• Watts

• Amps

• Volts

• Ohms

Tags

Year 12