Capacitors

Question 1

What does a capacitor consist of

Answer 1

2 métal plates separated by an insulating material

Question 2

In a d.c. voltage each plates of the capacitor will become?

Answer 2

One positive and. One negative

Question 3

What is the sump il for capacitor

Answer 3

4 lunes

Question 4

Define a use of a capacitor

Answer 4

Provide energy quickly for example a flash of a camera

Question 5

For uncharged Capacitor in d.c. describe the reading on ammeter and voltmeter

Answer 5

Ammeter high to zero

Voltmeter zero to match supply voltage

Question 6

For charged capacitor describe the reading on ammeter and voltmeter

Answer 6

Ammeter high to zero

Voltage high to zero

Question 7

In an ac circuit when does the capacitor charge change

Answer 7

Every half cycle

Question 8

State the relationship between the magnitude of the excess charge on the plates of the capacitor

Answer 8

Thé pd difference between the plates of capacitor are directly proportional to the excess charge on each plate