Circuits and Ohm's Law

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit where components are connected end-to-end, so that the current flows through each component in turn. If one component fails, the entire circuit is interrupted.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit where components are connected across common points or junctions, providing multiple paths for the current to flow. If one component fails, the others can still operate.

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 a power source in a circuit?

Back

A power source is a device that provides electrical energy to a circuit, such as a battery or a power supply.

Front

What is a resistor?

Back

A resistor is a component in an electrical circuit that resists the flow of electric current, creating a voltage drop.

Front

What is a switch?

Back

A switch is a device that can open or close a circuit, allowing or stopping the flow of electricity.

Front

What is the function of a light bulb in a circuit?

Back

A light bulb converts electrical energy into light energy, providing illumination when current flows through it.

Front

How does temperature affect resistance?

Back

Generally, as the temperature of a conductor increases, its resistance also increases. Conversely, decreasing the temperature can lower resistance.

Front

What is the role of a conductor in a circuit?

Back

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

Front

What happens in a closed circuit?

Back

In a closed circuit, the path for current is complete, allowing electricity to flow and power devices.