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 can be expressed as V = I × R.

Front

What is the unit of voltage?

Back

The unit of voltage is the Volt (V).

Front

What is the unit of current?

Back

The unit of current is the Ampere (A).

Front

What is the unit of resistance?

Back

The unit of resistance is the Ohm (Ω).

Front

What does a circuit consist of?

Back

A circuit consists of a closed path through which electric current flows, including a power source, conductors, and a load.

Front

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

Back

According to Ohm's Law, the relationship is defined as V = I × R, where V is voltage, I is current, and R is resistance.

Front

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

Back

If resistance increases while voltage remains constant, the current will decrease.

Front

What is a series circuit?

Back

A series circuit is a circuit in which the components are connected end-to-end, so that the current flows through each component in turn.

Front

What is a parallel circuit?

Back

A parallel circuit is a circuit in which the components are connected across common points or junctions, allowing multiple paths for the current to flow.

Front

How do you calculate total resistance in a series circuit?

Back

In a series circuit, the total resistance (R_total) is the sum of the individual resistances: R_total = R1 + R2 + R3 + ...