Ohm's 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 unit of current?

Back

The unit of current is Amperes (A).

Front

What is the unit of voltage?

Back

The unit of voltage is Volts (V).

Front

What is the unit of resistance?

Back

The unit of resistance is Ohms (Ω).

Front

What is a circuit?

Back

A circuit is a complete path through which electric current can flow.

Front

What is resistance in terms of electricity?

Back

Resistance is a measure of how difficult it is for electrons to flow through a material.

Front

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

Back

According to Ohm's Law, V = I × R, meaning voltage is the product of current and resistance.

Front

What happens to current if resistance increases while voltage remains constant?

Back

If resistance increases while voltage remains constant, the current decreases.

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows current to flow.

Front

What is an open circuit?

Back

An open circuit is a broken loop that prevents current from flowing.