Circuits and Ohms Law

Front

What particle has a negative charge?

Back

Electrons

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 electrical resistance?

Back

Ohm (Ω)

Front

What is the formula to calculate current in a circuit?

Back

Current (I) = Voltage (V) / Resistance (R)

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, providing multiple paths for the current.

Front

What is an insulator?

Back

An insulator is a material that does not allow electric current to flow through it easily. Examples include rubber and glass.

Front

What is a conductor?

Back

A conductor is a material that allows electric current to flow through it easily. Examples include copper and aluminum.

Front

What happens to the total resistance in a series circuit when more resistors are added?

Back

The total resistance increases.

Front

What happens to the total resistance in a parallel circuit when more resistors are added?

Back

The total resistance decreases.