Which bulb will be the brightest between A with 10 ohm and 15 ohm bulb and why?
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Apr 12
The bulb with 10 ohm resistance will be brighter than the bulb with 15 ohm resistance. This is because the brightness of a bulb is directly proportional to the amount of current passing through it.
According to Ohm's Law (V = IR), the current passing through a circuit is inversely proportional to the resistance in the circuit. Therefore, a lower resistance will allow more current to pass through the bulb, making it brighter.
In this case, the bulb with 10 ohm resistance will allow more current to pass through it compared to the bulb with 15 ohm resistance, resulting in the 10 ohm bulb being brighter.