Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 3

A student measures the current through a resistor and the potential difference (p.d.) across it. There is a 4% uncertainty in the current reading and a 1% uncertainty in the p.d. reading. The student calculates the resistance of the resistor. What is the percentage uncertainty in the calculated resistance?

1. A0.25%
2. B3%
3. C4%
4. D5%

As printed in the paper