LG Electricty

Question 1

What is a conductor and insulator

Answer 1

A material that lets electrons through it easily is a conductor whilst an Insulator does not let electrons flow through it as easily

Question 2

How is V I and R linked and what do they mean

Answer 2

V is voltage or potential difference I is amps R is resistance it is V equals I x R

Question 3

How is C A and T linked and what do they mean

Answer 3

C is charge flow A is current while T is time
Charge flow equals curent x time

Question 4

A circuit has 5 amps and 12 ohms of resistance what is the voltage

Answer 4

60 Volts
5 amps x 12 ohms

Question 5

The mass of a wire is 0.00175 Kg and the heat produced is 205 000 J/Kg how much energy is needed to melt the wire in Joules

Answer 5

359 Joules
0.00175 Kg x 205 000 J/Kg

Question 6

Calculate the current when 1.52 of charge flows in 0.40 seconds

Answer 6

3.8 Amps
1.52 divided by 0.40