Electricity and Magnetism

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 is broken.

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 current can still flow through other paths.

Front

What is an insulator?

Back

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

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily. Examples include metals like copper and aluminum.

Front

What happens when two objects with the same charge come close to each other?

Back

Two objects with the same charge (either both positive or both negative) will repel each other.

Front

What happens when two objects with opposite charges come close to each other?

Back

Two objects with opposite charges (one positive and one negative) will attract each other.

Front

How can the strength of an electromagnet be increased?

Back

The strength of an electromagnet can be increased by adding more coils of wire around the core or increasing the current flowing through the wire.

Front

What is the role of a battery in a circuit?

Back

A battery provides the electrical energy needed to push the current 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 resistance in an electrical circuit?

Back

Resistance is a measure of the opposition to the flow of electric current in a circuit. It is measured in ohms (Ω).