An electric kettle has two heating coils. When one coil is used, water – McqOptions

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1.	An electric kettle has two heating coils. When one coil is used, water in the kettle boils in 5 minutes, while when second coil is used, same water boils in 10 minutes. If the two coils, connected in parallel are used simultaneously, the same water will boil in time [MP PET 2001]
A.	3 min 20 sec
B.	5 min
C.	7 min 30 sec
D.	2 min 30 sec
Answer» B. 5 min

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