Circuit Exercise-3: Solution

As per the figure below and identify which of the two circuits shown will cause the light bulb to light?
Pick an answer:
  1. (A)
  2. (B)
  3. None
  4. Both
  5. The drawing is not clear enough to decide
Answer:
The circuit in diagram A, there is no potential difference in the closed circuit.
Whereas the circuit in diagram B will allow the light bulb to light because of the existence of a closed circuit.

Hence, having the switch open or closed will not interfer since it is in parallel with another conductor.


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Date of last modification: Summer , 2019