Front

What is voltage?

Back

Voltage is the electric potential difference between two points in a circuit, measured in volts (V). It represents the energy per unit charge available to move electrons through a circuit.

Front

What is current?

Back

Current is the flow of electric charge in a circuit, measured in amperes (A). It represents the rate at which charge is flowing.

Front

What is resistance?

Back

Resistance is the opposition to the flow of electric current in a circuit, measured in ohms (Ω). It determines how much current will flow for a given voltage.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. It can be expressed as V = I × R.

Front

What unit is used to measure voltage?

Back

Volts (V) are the units used to measure voltage.

Front

What unit is used to measure current?

Back

Amperes (A) are the units used to measure current.

Front

What unit is used to measure resistance?

Back

Ohms (Ω) are the units used to measure resistance.

Front

How do you calculate voltage in a circuit?

Back

Voltage can be calculated using Ohm's Law: V = I × R, where V is voltage, I is current, and R is resistance.

Front

How do you calculate current in a circuit?

Back

Current can be calculated using Ohm's Law: I = V / R, where I is current, V is voltage, and R is resistance.

Front

How do you calculate resistance in a circuit?

Back

Resistance can be calculated using Ohm's Law: R = V / I, where R is resistance, V is voltage, and I is current.