An increase in the current is observed when the brightness of the bulb increases. If any series bulb is unscrewed, an open circuit is created and no current exists. Each device placed within the circuit provides a resistance to the electrons flowing through the wire.
Explanation:
But if the wire is shorter it It all depends on how much current the bulb is drawing, a normal mains voltage lamp drawing say . 25 Amps would need a very long length of domestic grade cable to cause any appreciable dimming where as a 12 volt 400 watt projector lamp could well be dimmed by a few meters
Answers & Comments
Answer:
An increase in the current is observed when the brightness of the bulb increases. If any series bulb is unscrewed, an open circuit is created and no current exists. Each device placed within the circuit provides a resistance to the electrons flowing through the wire.
Explanation:
But if the wire is shorter it It all depends on how much current the bulb is drawing, a normal mains voltage lamp drawing say . 25 Amps would need a very long length of domestic grade cable to cause any appreciable dimming where as a 12 volt 400 watt projector lamp could well be dimmed by a few meters