Electricity - ELCA - M

Front

What is an ampere (amp)?

Back

An ampere (amp) is the unit of electric current, defined as the flow of 1 coulomb of charge per second.

Front

State Ohm's Law.

Back

Ohm's Law states that the current in a circuit is directly proportional to the voltage supplied and inversely proportional to the resistance.

Front

What is electric resistance measured in?

Back

Electric resistance is measured in ohms.

Front

What is the formula for Ohm's Law?

Back

Front

What type of current does a battery generate?

Back

A battery generates direct current (DC).

Front

Define voltage.

Back

Voltage, also known as electric potential difference, is the measure of the potential energy per unit charge between two points in an electric field.

Front

What is the unit of voltage?

Back

The unit of voltage is the volt (V).

Front

What does a resistor do in a circuit?

Back

A resistor limits the flow of electric current in a circuit.

Front

What is the relationship between voltage, current, and resistance?

Back

According to Ohm's Law, voltage (V) = current (I) × resistance (R).

Front

What is alternating current (AC)?

Back

Alternating current (AC) is an electric current that reverses direction periodically.