Currents and Potential difference

Question 1

What is electric current?

Answer 1

The flow of charge

Question 2

How do we measure the flow of charge?

Answer 2

Use an Ameter

Question 3

What is the unit for charge?

Answer 3

1 coulomb

Question 4

What is the formula for current?

Answer 4

I = Q/t
Current = charge/time

Question 5

What is potential difference?

Answer 5

Potential difference is the work done per column of charge that passes the component

Question 6

What is work done?

Answer 6

Energy transferred in joules

Question 7

What is the formula for potential difference?

Answer 7

V = W/Q

Potential difference = energy transferred/ Work done