Question

An electric kettle has two heating coils. When one of the
coils is connected to an a.c. source, the water in the kettle
boils in 10 minutes. When the other coil is used the water
boils in 40 minutes. If both the coils are connected in parallel,
the time taken by the same quantity of water to boil will be
(a) 15 min (b) 8 min (c) 4 min (d) 25 min

Answer 1

Answer:

b=8 minutes is your answer buddy

Explanation:

Answer 2

Answer:

B. 8 minutes is the answer