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Why current remains constant in a resistor? Write atleast 5 points.

Question

Why current remains constant in a resistor? Write atleast 5 points.

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Solution

  1. Ohm's Law: According to Ohm's law, the current flowing through a resistor is directly proportional to the voltage applied across it. This means that if the voltage remains constant, the current will also remain constant.

  2. Resistance Stability: The resistance of a resistor is fixed and does not change with the amount of current flowing through it. This means that the current will remain constant as long as the resistance and voltage remain constant.

  3. Temperature Effects: In an ideal resistor, the resistance does not change with temperature. This means that the current will remain constant even if the temperature changes. However, in real-world resistors, resistance can change slightly with temperature, but this effect is usually negligible.

  4. Power Supply Stability: If the power supply providing the voltage across the resistor is stable and does not fluctuate, the current through the resistor will remain constant.

  5. Absence of Reactive Components: Resistors are non-reactive components, meaning they do not store energy like capacitors or inductors. This means that the current through a resistor is only dependent on the voltage across it and its resistance, and not on any previous or future currents. This is why the current remains constant in a resistor.

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