what is ohm's law?
Ohms law establishes a relationship between resistance, voltage and current, saying that V/I = R.
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Related Physics GCSE answers
All answers ▸A 15kg cannonball and a 1kg football are dropped to the ground from a height of 10 metres. Calculate the speed of the cannonball and of the football just before they hit the ground (you may ignore air resistance).
if -3 + -4 is -7, is -3 x -4 =-12 (also negative)
When the current through an ohmic conductor is 2A, the potential difference across it is 6V. What is the potential difference across the same ohmic conductor when the current is increased to 3A?
Photons with 605 THz frequency strike metal of 1.2eV work function. Calculate the maximum energy of photoelectrons and their velocity. What amount of energy is necessary to stop all photoelectrons? (Planck's constant. electron mass and charge are given)