The diagram shows identical lamps X and connected in series with a battery. The lamps light with normal brightness.If a third lamp Z is connected in parallel with lamp X, then what will happens to the brightness of the lamp Y?

Foundation

Physics Foundation

Ohms Law and Resistance

Heating effect of current electric energy and electric power

Question

The diagram shows identical lamps X and connected in series with a battery. The lamps light with normal brightness.If a third lamp Z is connected in parallel with lamp X, then what will happens to the brightness of the lamp Y?

Brighter than normal

Normal

Dimmer than normal

Very dim (cannot be seen)

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The third lamp Z is connected parallel to X, so the current gets divided among X and Z. So both bulbs Xand Z light dimmer and the bulb Y lights brighter than earlier because current through it increases.