Need help on Question one in the picture Produced in any form or by any means wi

Question

Need help on Question one in the picture

Produced in any form or by any means without written permission. Charges +Q and -Q are arranged at the corners of a square as shown. When the electric field magnitude E and the electric potential V are determined at P, the center of the square, we find that E notequalto 0 and V > 0 E = 0 and V = 0 E = 0 and V > 0 E notequalto 0 and V = 0 E notequalto 0 and V > R what is the general variation of the magnitude of B with z; i.e. B(z) is proportional to _____ ? Constant z 1/z 1/z^2 1/z^3 A cube of side 6.17 cm has a charge of 1.19 times 10^-3 C placed at its center. Calculate the magnitude of the electric flux through the top surface of the cube. 1.68 times 10^7 Nm^2/C 2.24 times 10^2 Nm^2/C 3.36 times 10^7 Nm^2/C 6.72 times 10^8 Nm^2/C 1.34 times 10^8 Nm^2/C

Explanation / Answer

1) correct option is (a)

electric field E = kq/r^2 (it is a vector quantity)

electric potential V = kq/r (it is a scalar quantity)

(b) correct option is (c)

B = uo*I/2pi*Z

(c) Q = 1.19*10^-3 C

from Gauss law electric flux phi = q/6eo

phi = 1.19*10^-3/(6*8.85*10^-12)

phi = 2.24*10^7 N.m^2/C

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