Electricty

Question 1

What is EMF

Answer 1

Electromotive force-ideal voltage of battery

Question 2

What is TPD

Answer 2

It is the actual voltage as some energy is lost to internal resistance- actual value when battery is connected to a circuit

Question 3

What is lost volts?

Answer 3

It is the EMF-TPD

Question 4

How can E=V+Ir be written

Answer 4

E=I(R+r)
E=IR+Ir

Question 5

What can affect capacitance?

Answer 5

Area of plates
Distance between plates
Material between plates

Question 6

Capacitance definition

Answer 6

A capacitor of 1 farad will store 1 coulomb of charge when the potential difference across it is 1 volt

Question 7

What is doping for conductors

Answer 7

It is when silicon is grown on the conductors to include different atoms which are called donors as they give electrons to the conduction band

Question 8

What is a linear accelerator

Answer 8

It increases the velocity of charged particles by use of electric fields

Question 9

definition of AC

Answer 9

changes direction and instantaneous value with time

Question 10

define what is meant by an EMF of 6V

Answer 10

6 joules of energy are being supplied to each coloumb of charge passing through the supply