Electric Circuits

Front

What is an electric circuit?

Back

An electric circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and a load.

Front

What happens when a circuit is open?

Back

When a circuit is open, the flow of electric current is interrupted, and devices like light bulbs will not operate.

Front

What is a conductor?

Back

A conductor is a material that allows electric current to flow through it easily, such as metals like copper and aluminum.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of electric current, such as rubber, glass, or plastic.

Front

What is the function of a switch in a circuit?

Back

A switch controls the flow of current in a circuit by opening (turning off) or closing (turning on) the circuit.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected end-to-end, so current flows through each component. In a parallel circuit, components are connected across common points, allowing current to flow through multiple paths.

Front

What is voltage?

Back

Voltage is the electric potential difference between two points in a circuit, measured in volts (V). It drives the flow of current.

Front

What is current?

Back

Current is the flow of electric charge in a circuit, measured in amperes (A). It represents how much charge is flowing per unit time.

Front

What is resistance?

Back

Resistance is the opposition to the flow of electric current, measured in ohms (Ω). It determines how much current will flow for a given voltage.

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): V = I × R.