C11 - voltage energy and power

Question 1

what is potensil difernace

Answer 1

used when charges loose energy y transferring electrical energy to other forms

Question 2

what is electromotive force

Answer 2

when charges gain electrical energy from a power suplu or battery

Question 3

what is equation for potential difernace

Answer 3

energy lost by charge/charge

Question 4

what is power

Answer 4

the rate at which energy is transferd

Question 5

what two qualities determine the rate at which energy is transferd

Answer 5

current

potential difference

Question 6

what is equation for amount of energy transferred §

Answer 6

potential difference x charge

Question 7

what is equation for power

Answer 7

potential difference x current

Question 8

what is a fuse

Answer 8

a device that will blow if the current is too high, preventing overheating

Question 9

what is the equation for a PD across the resistor

Answer 9

current x resistance

Question 10

what is a killer-what hour

Answer 10

amount of killerwhats transferd over the course of an hour