G11 Electricity concepts

Voltage is also known as

• Potential difference

• Volts

• Amperes

• Energy

Resistance is (SAGs definition)

• opposite to the flow of charge

• opposition to the flow of charge

• opposition to the flow of current

• opposition to the flow of electrical current

The current in a circuit is related to

• The number of electrons which flow through the circuit

• The energy each electron gains or loses as it flows through the circuit

Electrons cannot just disappear, this is because of

• The law of conservation of mass

• The law of conservation of charge

• Ghosts don't like to take electrons

• Current is the same in a series circuit

In a parallel part of the circuit, the current in the different branches is

• The same

• Different

Which physical quantity should be the same regardless of which parallel branch you are considering?

• Number of electrons passing per second

• Number of electrons flowing through that branch

• Difference in energy between the start and end point

• Difference in energy per electron between the start and end point

Resistance is affected by

(chose all the correct answers)

• The colour of the resistor

• The material that the resistor is made out of

• The shape of the resistor (cylindrical vs rectangular)

• The temperature of the resistor in the circuit

Voltmeters should ideally have

• high resistance

• low resistance

• no resistance

Ammeters should ideally have

• High resistance

• Low resistance

• No resistance

A path with no resistance that connects one side of the battery to the other side of the battery is called

• Zero resistance branch

• Short circuit

• Infinite current path