1.

Two electric bulbs with rating 100W, 220V are connected in series to a 220V supply. Let the power dissipated be W1. Then the same bulbs are connected in parallel to the same supply. Let the power dissipated be W2. W1/W2 is

A. 2
B. 0.25
C. 4
D. 0.5
Answer» C. 4


Discussion

No Comment Found