explain how the resistance of a filament lamp changes as the potential difference across it increases
as the potential difference increases, the current increases (ohm's law). this causes the temperature of the filament to increase, causing the resistance to increase.
SQ
Related Physics GCSE answers
All answers ▸What is meant by 'resolving a vector into its components'?
The amplitude of a simple harmonic oscillator has decreased from 40cm to 38cm. What percentage of energy did the harmonic oscillator lose?
How do fossil fuel powered power stations and solar powered power stations generates electricity?
What are Newton's 3 laws of motion?