what is the energy required to build up a current of 1A an inductor of 20mH ?
A)10 mJ
B) 20 mJ
c) 20 J
D) 10 J
Answers
Answered by
19
10mJ is the energy required to build up a current of 1A an inductor of 20mH.
Explanation:
Given,
Current = 1A
Inductance of the inductor(L) = 20mH
To find,
Energy required = ?
by using E = 1/2 Li^2
= 1/2 * 20 * 10^-3 * (1)^2
= 0.01 J 0r 10mJ(millijoule)
Thus, 10mj of energy is required.
Learn more: find the energy required
brainly.in/question/5298241
Answered by
0
Answer:
(A) 10mJ
is correct option
Explanation:
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