Physics 9702 · AS & A Level · Practical circuits

Practical circuits — practice question

A student has a collection of identical cells and identical lamps. The cells have negligible internal resistance. When one lamp is connected to one cell, the lamp shines with normal brightness. What occurs when the student connects the lamps and the cells in the arrangement shown?

  • AAll three lamps light with normal brightness.
  • BOnly lamp 2 lights with normal brightness.
  • COnly lamps 1 and 3 light with normal brightness.
  • DNone of the lamps light with normal brightness.

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