How will the current change if the voltage in a circuit is held constant while the resistance halves? 1. the current remains unchanged. 2. it's impossible to predict. 3. the current quadruples. 4. the current doubles. 5. the current halves?
The answer is the current doubles. The explanation is found
in the Ohm’s law, this states that the current over a conductor between two
points is straight relative to the voltage through the two points. So in other
words, I_2 = V/R = 2V/R = 2I_1
