Electrical circuits

Question 1

How do you work out power?

Answer 1

Power=current X voltage

Question 2

How do you work out I?

Answer 2

I means current

Current = power/voltage

Question 3

What is the units for charge

Answer 3

Coulombs C

Question 4

How to work out resistance?

Answer 4

Resistance= voltage/current

Question 5

What is the units for resistance?

Answer 5

Ohms

Question 6

How do you work out energy in circuits?

Answer 6

Energy= power X times

Question 7

How do you work out energy with charge?

Answer 7

Energy= voltage X charge

Question 8

How do you work out energy usage?

Answer 8

Energy usage= powar X time

Question 9

What is a diodle

Answer 9

It is like a valve in a circuit, it only lets the current flow one way

Question 10

What is current measured in?

Answer 10

Amps

Question 11

What is a fuse and why is it important?

Answer 11

A fuse is a thin piece of wire which is designed to melt if the current flows for it is too high

A fault in a circuit might cause a large current

This may damage the device or start a fire

A fuse is to prevent this from happening