Basic Electricity

What is this symbol?

• LED

• Resistor

• Battery

• Breadboard

What is this symbol?

• LED

• Resistor

• Battery

• Breadboard

What is the current in an electric circuit?

• The energy of the circuit

• The flow of electrons in the circuit

• The power of the circuit

If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?

• 5 V

• 12 V

• 0.2 V

• 20 V

What will happen if one light bulb is removed from this circuit?

• The other bulbs will go out.

• The other bulbs will stay on

• The other bulbs will get dimmer.

• The battery will become stronger.

The term used for measuring the resistance of an electric current is:

• wattage

• Voltagr

• amperes

• Ohm

SI unit of current is

• ampere

• metre

• ohm

• volt

This circuit has more than one loop. When one light goes out, the others stay on. 

• closed circuit

• series circuit

• parallel circuit

• open circuit

This is an example of a _______ circuit

• open

• series

• parallel

• switch

One of the advantages of _________ circuits is that they ensure all components in the circuit have the same voltage

as the source.For instance, all bulbs in a string of lights have the same brightness.

• open

• multiple

• series

• parallel