oo C·@w . * O, all 56% 6:43 PM x X X X X >x In the figure, E-10 V 11-41 2, L-10
ID: 1872980 • Letter: O
Question
oo C·@w . * O, all 56% 6:43 PM x X X X X >x In the figure, E-10 V 11-41 2, L-10 cm, and B-3/mT. The magnetlc field polnts Into the page, Calculate the net torce on the clrcult due to the magnetic ficld. PAPER SOLUTION Solve the problem on paper first, Including all four IDEA steps. You ll become a better physlclst that way! Have you finished your paper solutlon already? yes no INTERPRET DEVELOP Derive an algebraic expression tor the net force on the circult. In your answer, type E to represent . In your answer, type i,j and k to represent i, j and i.Explanation / Answer
Given,
E = 10 V ; R = 4 Ohm ; L = 10 cm ; B = 37 mT
We know that the magnetic force on a loop with side L is given by:
Fm = B I L
We need to know the current
We know from Ohm's law
V = IR => I = V/R = E/R = 10/4 = 2.5 A
F = 37 x 10^-3 x 2.5 x 10 x 10^-2 = 9.25 x 10^-3 N
Hence, F = 9.25 x 10^-3 N
Expression : F = BIL sin(theta)
F = BIL = B(E/R)L = B E L/R (-j)
F = B E L/R (-j)
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