In a parallel circuit, voltage is supposed to be constant right. So can anyone tell me why in my recent practical I measured varied voltages from the light globes? possible errors?

Question

anonymous · Answer

can you please provide with the circuit diagram..

anonymous · Answer

V=R.I  you lose V in the conductor! It´s your I very high?

radar · Answer

Possible variations occurring in your source voltage, measuring instrument and the contact resistance of your probes plus what MikeAndreu posted.

anonymous · Answer

Im sorry Nasir2012 i have no knowledge of how to do that through here.
yes MikeAndreu and radar, the current was very high, the volts for the circuit were constant however when the volts for the globes were not. if the current was very high, how does that make the voltage not constant?

anonymous · Answer

Is possible you have a parallel circuit, but you don't see have a serial circuit, with globes in the midle off the copper. I discard "measure" error because understand you make a lot of measures before you ask to us.

radar · Answer

Conductors have very low resistance, but do have some resistance, in high current situations their will be some voltage drops as result of the IR drop along the conductors.|dw:1369755020694:dw|