hen a 4V battery is connected across an unknown resistor there is a current of 100 mA in the circuit.
Question
Solution 1
Sure, I can help with that. The question seems to be asking for the resistance of the unknown resistor.
We can use Ohm's Law to solve this. Ohm's Law states that the voltage across a resistor is equal to the current through it times its resistance. It's usually written as V = IR.
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