The resistance of a conductor is 440 ohms. If it is connected to a 110-volt source, how much current will flow through it?
The current flowing through a conductor connected to a 110-volt source can be calculated using Ohm’s law. Ohm’s law states that current (I) equals voltage (V) divided by resistance (R). Here, with a resistance of 440 ohms and a voltage of 110 volts, the current can be found by dividing 110 volts by 440 ohms.
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The correct answer is 0.25A (option B). Ohm’s law dictates that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance. In this case, with a resistance of 440 ohms and a voltage of 110 volts, the resulting current is 0.25 amperes. This relationship is essential in designing and analyzing electrical circuits, allowing engineers to predict current flow based on known voltage and resistance values without needing to use the formula explicitly. Understanding Ohm’s law helps ensure efficient and safe operation of electrical systems by providing insights into how different components interact under varying conditions of voltage and resistance.