# Multiples and sub-multiples, abbreviations and indices

### Explanation of question 11

A current of 5 microamps flows through a resistor when a p.d. of 15V is applied across its terminals. The resistor has a resistance value of

1. 3 M
2. 3 k
3. 3
4. 0.33

The answer is :- 1

R =

= 15
5 x 10-6

= 3 x 10-6 = 3M

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