P5 ELECTRICITY

Question 1

Potential difference

Answer 1

It is the energy transferred per unit charge flowing between two points

through a conductor.

Question 2

EMF

Answer 2

It is the energy provided by a battery per unit charge flowing through the

battery

Question 3

terminal potential difference

Answer 3

The voltage measured across the terminals of a battery when charges are

flowing in the circuit.

Question 4

current strength

Answer 4

rate of flow charge

Question 5

resistance

Answer 5

The ratio of the potential difference across a resistor to the current in the

resistor.

Question 6

internal resistance

Answer 6

The resistance within a battery when current is flowing which causes a
decrease in the potential difference that the battery can supply to the
external circuit.

Question 7

one ohm

Answer 7

One ohm is equal to one volt per ampere.

Question 8

One coulomb

Answer 8

The charge transferred in a conductor in one second if the current is one

ampere.

Question 9

ohms law

Answer 9

The potential difference across a conductor is directly proportional to the

current in the conductor at constant temperature.

Question 10

power

Answer 10

It is the rate at which work is done.