SI Units and electricity

Front

What is the SI unit of energy?

Back

Joules

Front

What is the SI unit of electric current?

Back

Amperes (Amps)

Front

What is the SI unit of voltage?

Back

Volts

Front

What is the SI unit of charge?

Back

Coulombs

Front

What does 1 Ampere represent?

Back

1 Coulomb per second

Front

What is the measure of energy capacity in batteries?

Back

Watt*hours

Front

What is the measure of charge capacity in batteries?

Back

Amp*hours

Front

How many electrons are in 1 Coulomb of charge?

Back

Approximately 6.24×10^18 electrons

Front

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

Back

Ohm's Law: V = I * R (Voltage = Current * Resistance)

Front

What is the formula for calculating electrical power?

Back

Power (Watts) = Voltage (Volts) * Current (Amps)