Ask a Question

Find the work done in an inductor of 4H when a current 8A is passed through it?

in Education by
Find the work done in an inductor of 4H when a current 8A is passed through it? (a) 256 (b) 128 (c) 64 (d) 512 I have been asked this question in an interview. The origin of the question is Magnostatic Energy in chapter Magnetostics of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

1 Answer

0 votes
by
 
Best answer
Right choice is (b) 128 Explanation: The work done in the inductor will be W = 0.5 x LI^2. On substituting L = 4 and I = 8, we get, W = 0.5 x 4 x 8^2 = 128 units.

Related questions

0 votes
Q: Find the induced EMF in an inductor of 2mH and the current rate is 2000 units.
    Find the induced EMF in an inductor of 2mH and the current rate is 2000 units. (a) 4 ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 10, 2021 in Education by JackTerrance
0 votes
Q: Find the power of an inductor of 5H and current 4.5A after 2 seconds.
    Find the power of an inductor of 5H and current 4.5A after 2 seconds. (a) 25.31 (b ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 10, 2021 in Education by JackTerrance
0 votes
Q: Calculate the magnetic field at a point on the centre of the circular conductor of radius 2m with current 8A.
    Calculate the magnetic field at a point on the centre of the circular conductor of radius 2m ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: The energy stored in an inductor 2H and current 4A is
    The energy stored in an inductor 2H and current 4A is (a) 4 (b) 8 (c) 12 ( ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: Find the work done moving a charge 2C having potential V = 24volts is
    Find the work done moving a charge 2C having potential V = 24volts is (a) 96 (b) 24 ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: An electric field is given as E = 6y^2z i + 12xyz j + 6xy^2 k. An incremental path is given by dl = -3 i + 5 j – 2 k mm. The work done in moving a 2mC charge along the path if the location of the path is at p(0,2,5) is (in Joule)
    An electric field is given as E = 6y^2z i + 12xyz j + 6xy^2 k. An incremental ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: From the formula F = qE, can prove that work done is a product of force and displacement. State True/False
    From the formula F = qE, can prove that work done is a product of force and displacement. ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance

© Copyright 2018-2023 www.Blogmepost.com. All rights reserved. Developed by Blogmepost.

...