Electricity

Front

What is a series circuit?

Back

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

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit in which the 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 a conductor?

Back

A conductor is a material that allows electric charges to flow through it easily. Examples include metals like copper and gold.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of electric charges. Examples include rubber, glass, and plastic.

Front

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

Back

In a series circuit, adding more resistors increases the total resistance, which decreases the overall current flowing through the circuit.

Front

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

Back

In a parallel circuit, adding more resistors decreases the total resistance, which increases the overall current flowing through the circuit.

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 the role of a switch in a circuit?

Back

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

Front

What is the difference between alternating current (AC) and direct current (DC)?

Back

Alternating current (AC) is an electric current that reverses direction periodically, while direct current (DC) flows in one direction only.

Front

What is electrical resistance?

Back

Electrical 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.