JEE Main 2019 Physics question

PhysicsCurrent ElectricityJEE Main 2019

Two equal resistances when connected in series to a battery, consume electric power of 60 W. If these resistances are now connected in parallel combination to the same battery, the electric power consumed will be:

Answer: (A)

Solution

Resistance falls from 2R to R/2: power × 4.

Question ID VK-010486