Understanding Electrical Circuits

What is the simplest type of electrical circuit?

• A circuit with a cell and a resistor

• A circuit with a cell and a switch

• A circuit with a cell and a wire

• A circuit with a cell and a capacitor

Which symbol represents a battery in a circuit diagram?

• A single cell symbol

• Two cell symbols put together

• A light bulb symbol

• A switch symbol

What does the term 'current' refer to in an electrical circuit?

• The potential energy in the circuit

• The opposition to the flow of electrons

• The measure of the flow of electrons

• The force driving the flow of electrons

How is resistance measured in an electrical circuit?

• In ohms

• In amperes

• In volts

• In watts

In which direction does conventional current flow in a circuit?

• It does not flow

• In both directions

• From positive to negative

• From negative to positive