One volt applied across one ohm of resistance causes a current flow of how many amperes?

The principle governing this scenario is Ohm's Law, which states that voltage (V) is equal to the current (I) multiplied by the resistance (R). This relationship can be expressed with the formula:

[ V = I \times R ]

If we rearrange this formula to solve for current, we get:

[ I = \frac{V}{R} ]

In this question, if you apply one volt (1 V) across a resistance of one ohm (1 Ω), the calculation for current would be:

[ I = \frac{1 , \text{V}}{1 , \Omega} = 1 , \text{A} ]

Hence, the resulting current is one ampere. This illustrates a fundamental concept in electrical circuits, demonstrating that a direct relationship exists between voltage, current, and resistance. By understanding Ohm's Law, you can predict how changes in voltage or resistance will affect current flow in a circuit.