Ohms Law

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 is expressed as V = I × R.

Front

What is the formula to calculate voltage?

Back

The formula to calculate voltage is V = I × R, where V is voltage, I is current, and R is resistance.

Front

What is the formula to calculate current?

Back

The formula to calculate current is I = V / R, where I is current, V is voltage, and R is resistance.

Front

What is the formula to calculate resistance?

Back

The formula to calculate resistance is R = V / I, where R is resistance, V is voltage, and I is current.

Front

If a circuit has a voltage of 10V and a resistance of 5Ω, what is the current?

Back

The current is 2A (I = V / R = 10V / 5Ω).

Front

What is the power formula in an electrical circuit?

Back

The power (P) in an electrical circuit is calculated using the formula P = V × I, where P is power, V is voltage, and I is current.

Front

If a device uses 60W of power and operates at 120V, what is the current?

Back

The current is 0.5A (I = P / V = 60W / 120V).

Front

What is the unit of resistance?

Back

The unit of resistance is the Ohm (Ω).

Front

What is the unit of current?

Back

The unit of current is the Ampere (A).

Front

What is the unit of voltage?

Back

The unit of voltage is the Volt (V).