1.

There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel,                                                      [MP PET 1993]

A.            40 W in series and 100 W in parallel
B.            100 W in series and 40 W in parallel
C.            40 W both in series and parallel will be uniform
D.            100 W both in series and parallel will be uniform
Answer» B.            100 W in series and 40 W in parallel


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