potential difference in series circuit

Question 1

potential difference is another word for:

Answer 1

voltage

Question 2

A p.d of 1 volt tells us that…

Answer 2

A p.d of 1 volt tells us that 1 joule of energy is transferred for each coulumn of charge that is moving through the circuit.

Question 3

we measure p.d using?

Answer 3

a voltmeter

Question 4

where do we place the voltmeters?

Draw a diagram for this

Answer 4

across the component

Question 5

what other component do we use the voltmeter to measure a p.d of ?

Answer 5

we can also use a voltmeter to measure the p.d of a lamp.

Question 6

what does all the electrical energy in the current get transferred to and where?

Answer 6

all the electrical energy carried by the electric current is transferred to light energy and thermal energy in the lamp.

Question 7

explain the p.d of a circuit with 2 identical lamps in series.

Answer 7

both lamps get dimmer as the total energy in the current has been shared equally by 2 lamps.

Question 8

If the voltmeter across the cell measures a p.d of 10V

and the voltmeter across one of the lamps measure a p.d/voltage of 7 volts what is the voltage/p.d of the second lamp?

Answer 8

3 Volts

Question 9

explain the p.d of a circuit with 2 different lamps in series.

Answer 9

One lamp is dimmer than the other. the lamp with more voltage is brighter than the lamp with less voltage. The p.d/voltage is split unequally because the lamps are different.