A uniform charge of 10 nC/m exists on the ring placed along yz = 9, x 0. Find E at P(4, 0, 0). If two identical point charges Q are placed at (0, -4. 0) and (0, 4, 0) in addition to the ring, find the value of Q such that E = 0 at P. E0 = 8.85 x 1012 F/m.
A uniform charge of 10 nC/m exists on the ring placed along yz = 9, x 0. Find E at P(4, 0, 0). If two identical point charges Q are placed at (0, -4. 0) and (0, 4, 0) in addition to the ring, find the value of Q such that E = 0 at P. E0 = 8.85 x 1012 F/m.
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Transcribed Image Text:Q.1 (a) A uniform charge of 10 nC/m exists on the ring placed along y+z= 9, x= 0.
Find E at P(4, 0, 0).
If two identical point charges Q are placed at (0, -4. 0) and (0, 4, 0) in addition to
the ring, find the value of Q such that E = 0 at P.
E0 = 8.85 x 10 F/m.
(b) Four infinitely long parallel wires carrying equal current I = 10 A are arranged in
such a way that when looking at the cross section, they are at the corners of a
square, as shown in Figure Q1(b). Currents in A and D point out of the page, and
into the page at B and C. What is the magnetic field density at the center of the
square? lo = 47 x 10H/m
B
arka)
Figure Q1(b)
Hint: You may use the following information.
I
H=9-
(cos&-cos e,), (finite line).
4Tr
R
R
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