A. Coulomb’s law
B. Lenz’s law
C. Faraday’s law
D. Ampere’s law
Correct Answer:
Option B – Lenz’s law
The induced current in a coil always flows in a direction so as to oppose the change that causes it. This statement is known as
![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]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "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]")
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