Electricity

Question 1

Electric current

Answer 1

Is the rate of flow of charge

Question 2

EMF(electromotive force)

Answer 2

The maximum energy provided by a battery per unit charge passing through it

Question 3

Potential difference (voltage)

Answer 3

The energy used by the components components or resistors between two point in the external circuits/is the work done per unit charge to move a positive charge from one point to another

Question 4

Ohm’s law

Answer 4

The potential difference across a conductor is directly proportional to the current in the conductor at constantly temperature

Question 5

Ohmic conductor

Answer 5

Is a conductor that obeys ohm’s law e.g. Nichrome (metal conductor)

Question 6

Non-ohmic conductor

Answer 6

Is a conductor that does not obey ohm’s law e.g.Light bulb

Question 7

Power

Answer 7

The rate at which work is done

Question 8

External resistance

Answer 8

Is the total resistance of all components connected in the external circuit. This is also called a load /the opposition to the flow of of electric charge

Question 9

Internal resistance

Answer 9

Is the resistance that charge experiences when they move from one plate to another within a battery

Question 10

Internal resistance of the batter depends on:

Answer 10

~ the size of the plate
~the distance between the plate
~the type of electrolyte
~the temperature at which the battery is used

Question 11

Energy

Answer 11

The ability to do work or apply force to move an object