# Current, voltage and resistance

### Explanation of question 5

A resistor has a resistance of 2 when

1. a current flow of 1A produces a p.d. of 2V across its ends
2. a voltage flow of 2V produces a current of 2A across its ends
3. a current flow of 2A produces a p.d. of 2V across its ends
4. a voltage flow of 1V produces a current of 2A across its ends

The answer is :- 1

Ratio = 2, therefore the p.d. has a value twice as large as the current.

A p.d. appears across a component; current flows though a component.

BACK

page (tq0105ex)
Some material Copyright John Bowyer G4KGS.
Click here for important Copyright information
Web Space provided by Hostroute.com Ltd
Contact details