Explain how the resistance of a filament lamp changes as the potential difference across it increase
As the potential difference across the filament lamp increases the current across the lamp also increases due to Ohm's law.The increase in current flow also causes the lamp to heat up which causes the resistance of the lamp to also increase.
FB
Related Physics GCSE answers
All answers ▸What is the resistance (in Ohms) of two 20 Ohm resisters in parallel?
What are the changes in energy that an object experiences when it is launched vertically at a given velocity into the air and falls back to the ground? This question ignores air resistance.
A Car of mass 1000kg applies a constant 200N breaking force over a distance of 30m and comes to a complete stop. How fast was the car going the instant the brakes were engaged.
What is the equation of an accelerated body moving in one dimension?