It takes 4 minutes to boil a quantity of water using an electrical heating coil. How long will it take to boil the same quantity of water using the same coil if the current is doubled? [Neglect any external heat losses]

by | May 19 | Physics WAEC | 0 comments

A. 8 minutes
B. 4 minutes
C. 2 minutes
D. 1 minute

Correct Answer: Option C

C. 2 minutes

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