What determines the current in an electric circuit? - OCR 21C

1

What is the definition of electric current?

2

What is the formula for charge flow?

3

When 10 C of charge flows for 0.01 s, what is the current?

4

What is the charge flow when a 5 mA torch is left on for 15 minutes?

5

What is the unit of resistance?

6

What happens to the resistance of a piece of resistance wire as it gets hotter?

7

What does the current-voltage graph for a linear circuit component show?

8

Which statement about thermistors is correct?

9

What is the current in a 100 Ω resistor with a potential difference of 5 V across it?

10

What is the job of a diode?