Out of the two electric bulbs 50w - 220v and 100w-220v lamp. Which one will grow brighter when they are connected in series in parallel
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Answered by
3
In series both bulb get same current and glows equally.
But in parallel combination 100 w bulb glows brightly.
But in parallel combination 100 w bulb glows brightly.
Answered by
0
The resistance of the bulbs is defined as R = V^2/P . So the resistance of 50W bulb is double than the resistance of 100W blub.
When they are connected in series the current through both blubs is same. Hence 50W bulb will be brighter because P = I^2×R .
In parallel the voltage will be same in both bulbs. So, the 100W will be brighter because P = V^2/R .
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