Acoil has a resistance of 5ω and an inductance of 100 mh . at a particular instant in time after a battery is connected across the coil, the current is 2 a, and is increasing at a rate of 20a/s a) what is the voltage of the battery. b) what is the time-constant of the circuit. c) what is the final value of the current. d) plot i() vs time.

I have seen this question before and the correct answer would be B

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The correct answer would be B

Explanation:

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.