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HotCars Explains: Making Sense Of Volts, Ohms, and Amps(It’s called Ohm’s Law.) For example, if you know the voltage drop across a known value of resistance, you can work out how ...
A torch lamp takes a current of 0.3 A from a 3 V battery. Calculate its resistance.
A conductor that obeys Ohm’s Law is called an ohmic conductor. Copper or constantan wire are examples of ohmic conductors.
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