| RELATIONSHIPS AND LAWS - OHM'S LAW | ||
If the flashlight was a two-cell type (2 batteries), we would have twice the voltage, or 3.0 volts, applied to the circuit. Using this 3-volt value in equation (A), the current now equals .6 ampere. The current has doubled as the voltage has doubled, demonstrating that the current is directly proportional to the applied voltage. If the value of resistance of the lamp is doubled, the current is reduced to one half of the value of the previous equation, or .3 ampere, demonstrating that current is inversely proportional to the resistance. Doubling the value of the resistance reduces circuit current value to one half of its former value. |
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