ohms law and circuits

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 formula to calculate resistance in a circuit?

Back

Resistance (R) can be calculated using the formula R = V / I, where V is the voltage and I is the current.

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).

Front

What happens to current in a series circuit?

Back

In a series circuit, the same current flows through all components.

Front

What happens to voltage in a series circuit?

Back

In a series circuit, the total voltage is the sum of the voltages across each component.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit where the components are connected across common points or junctions, providing multiple paths for current to flow.

Front

What happens to current in a parallel circuit?

Back

In a parallel circuit, the total current is the sum of the currents through each parallel branch.

Front

How do you calculate total resistance in a series circuit?

Back

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