How to determine which bulb is brighter in a circuit?
Answers
Answered by
0
when the bulb glows... it looks like it is bright
Answered by
0
Both the current and voltage contributes to the brightness. It just depends on the configuration.
"Brightness" is a measure of power, so at constant voltage power is VI or I^2R. If resistance is decreased and current is increased by an equal factor, the increase in current counts for more and the bulb will appear brighter.
If we assuse R = constant
then,
In the case of a light bulb, the current through the load resistance is determined by the supply voltage. The higher the voltage the more current is pulled and the therefore more power is consumed.
"Brightness" is a measure of power, so at constant voltage power is VI or I^2R. If resistance is decreased and current is increased by an equal factor, the increase in current counts for more and the bulb will appear brighter.
If we assuse R = constant
then,
In the case of a light bulb, the current through the load resistance is determined by the supply voltage. The higher the voltage the more current is pulled and the therefore more power is consumed.
Anurag19:
I hope this helps you ^_^
Similar questions
India Languages,
8 months ago
Social Sciences,
8 months ago