Circuits

Question 1

Name two differences between a parallel and series circuit

Answer 1

1) if you remove one component in a series’s circuit then the circuit is. Token and non of it will work
Where as in a parallel circuit hardly anything is effected if one component I broken

2) if a parallel circuit is used then everything has to be turned on separately where as In a series’s circuit when you switch one ting in everything switches on

Question 2

In a series’s circuit where is the potential difference measured?

Also how is the potential difference dispersed ?

Answer 2

It is measure at a voltmeter .

And all of the potential differences add up to the total potential difference .

V(total) = v(1) + v(2)

Question 3

What is current measured in?

And how is it dispersed through each component in a series circuit ?

Answer 3

Current is measure in amps

And the current in a series circuit is the same at each ammeter.

I(1)=i(2)= i(3)

Question 4

What is resistance measured in?

And how is it dispersed in A series circuit?

Answer 4

It is measured in ohms

And the total resistance is the sum of each components resistance.
R(total)= R(1) + R(2)

Question 5

How do you find the current using potential difference and resistance ?

Answer 5

Current= potential difference/ resistance

Amps= voltage/ ohms

Question 6

In a PARALLEL circuit how is potential difference dispersed ?

Answer 6

It is the same across all voltmeters

V(1)= V(2) =V(3)

Question 7

How is current shared across a PARALLEL circuit?

Answer 7

The total current is the current at each component added together

I(total)= i(1) + i(2)

Question 8

What happened when you add a resistor to a parallel circuit ?

Answer 8

When you add another resistor to a parallel circuit the resistance decreases
. In parallel both resistors have the same potential difference across them
. This means the force “pushing “ and marking the current flow is the same as the potential difference for each resistor you add
. By adding g another loop you increase the total current, using v= r x I am increase in circuit means a decrease in resistance

Question 9

What does current mean ?

Answer 9

The current is the flow of electrical charge

Question 10

What does resistance mean?

Answer 10

The resistance is anything that is slowing to flow down .

Question 11

What does potential difference mean?

Answer 11

It is the driving force that pushes the charge around.

Question 12

When the resistance is greater, what happened to the current

Answer 12

It gets smaller

Question 13

How do you find charge ?

What is charge measured in?

Answer 13

Charge= current x time

It is measured in coulombs

Question 14

When there is a greater current what happens to the charge?

Answer 14

It increases

Question 15

What does the iv graph for a conductor look like?

Answer 15

A straight positively Correlated diagonal line.

. It is directly proportional to the potential difference

Question 16

What does an IV graph for a filament bulb look like?

Answer 16

An “s” shape but less curvy, it is positively correlated
. As the current increases the temperature of the filament increases, so the resistance increases. This means less current can flow per unit potential difference so the graph gets shower hence the curve

Question 17

What does the iv graph look like for a diode?

Answer 17

A straight horizontal line and then I diagonal line upwards. It is positively correlated.
. The diode has a very high resistance in the reverse direction