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Electrical Voltage Quiz

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Questions and Answers

What is the usual voltage received at a house?

220 V

120 V (correct)

240 V

100 V

What is the voltage used by small appliances in outlets?

240 V

120 V (correct)

100 V

220 V

What voltage do electric stoves, clothes dryers, water heaters, and AC units usually use?

220 V

120 V

240 V (correct)

200 V

What can we measure in a circuit using Ohm's Law?

Resistance, current, and voltage Signup and view all the answers

What is the definition of current?

The flow of electrons in a circuit Signup and view all the answers

What letter is normally used to represent current?

I Signup and view all the answers

What is the definition of voltage?

The potential difference in a circuit Signup and view all the answers

What letter is normally used to represent voltage?

V Signup and view all the answers

Study Notes

Electric Circuits

The usual voltage received at a house is 240 volts, which is then stepped down to 120 volts for normal household use.

Voltage Usage

Small appliances in outlets use 120 volts.
Electric stoves, clothes dryers, water heaters, and AC units usually use 240 volts.

Ohm's Law

Using Ohm's Law, we can measure resistance in a circuit, knowing the voltage and current.
The formula for Ohm's Law is I = V/R, where I is current, V is voltage, and R is resistance.

Electric Current

Electric current is defined as the flow of electrons from a point of higher potential to a point of lower potential.
The letter "I" is normally used to represent current.

Electric Voltage

Electric voltage is defined as the potential difference between two points in a circuit.
The letter "V" is normally used to represent voltage.

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Description

Test your knowledge of electrical voltage with this quiz! Learn about the typical voltage in household outlets and appliances, and see if you know the standard voltages for different devices.