Electrical system

Question 1

What is current

Answer 1

rate of flow of electric charges

Question 2

what is voltage/ potential energy

Answer 2

amoutn of energy needed to move from one point to another

Question 3

what is resistance

Answer 3

measure of how much the component opposes the rate of flow pof electric charges

Question 4

Unit and SI unit of current

Answer 4

symbol I, SI unit Ampere, A

Question 5

Unit and SI unit of voltage/ potential energy

Answer 5

V, volts

Question 6

Unit and SI unit of resistance

Answer 6

Symbol R, Si unit ohm Ω

Question 7

equation to calcutale potential difference

Answer 7

V=IR

Question 8

Hazards

Answer 8

Overloading, damaged wires

Question 9

benefit of electricity

Answer 9

chemical effect
heating effect
magnetic effect

Question 10

ways to conserve energy

Answer 10

Buy electrical appliance that have energy labels with three or more ticks

Switch off air conditioner after a short while and then switch to a fan

Switch off the water heater after use

Use vacuum flask instead of an electric hot water dispenser(my house cfm not doing that)

Switch off the power socket to reduce standby power

Question 11

conventional current flow and electron current flow

Answer 11

convential, positive to negative
electron, negative to positive