A plastic rod lies on the x axis such that one of its end is at x=-4cm and the other at x=4cm. It has a linear charge density of 50C/m. Find the magnitude of the electric field at point y= 8cm
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A plastic rod lies on the x axis such that one of its end is at x=-4cm and the other at x=4cm. It has a linear charge density of 50C/m. Find the magnitude of the electric field at point y= 8cm

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- The figure gives the magnitude of the electric field inside and outside a sphere with a uniformly distributed positive charge. What is the charge (C) on the sphere? Em = 8.00 × 10 N/C, R = 3.00 cm F R 5.60 × 10-7 1.10 × 10-7 6.81 x 10-5 3.56 × 10-7 6.09 × 10-5 O 3.72 x 10-7 2.54 x 10-5 2.12 x 10-5 8.25 x 10-6 4.23 x 10-7Consider an electric field perpendicular to a table top. When a small charged object of mass 4.18 g and charge -17 µC is carefully placed in the field, the object is in static equilibrium. What are the magnitude and direction of the electric field? (Give the magnitude in N/C.) magnitude N/C direction downwardTwo infinite nonconducting plates are parallel to each other, with a distance d = 12.0 cm between them. Each plate carries a uniform charge distribution with the surface charge density o = 4.28 μ C/m². What is the magnitude of the electric field at point R (with r = 17.0 cm)? ச 16 R 22 0.00 N/C 4.84 x 105 N/C O 5.80 x 105 N/C 3.87 x 105 N/C 3.39 X 105 N/C X
- In the figure a thin glass rod forms a semicircle of radius r = 4.74 cm. Charge is uniformly distributed along the rod, with +q = 4.39 pC in the upper half and -q = -4.39 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? P. Number i UnitsThe electric field 25.0 cm away from a very long uniform line of charge is 620 N/C. What is the uniform charge density of this very long line? (so = 8.85 x 10-12 c²/Nm², k = 9.00 x 10⁹ Nm²/C²) 4.31 x 10-6 C/m 3.49 x 1011 C/m 8.62 x 10-9 C/m 8.62 x 10-6 C/m 3.49 x 107 C/m 4.31 x 10-9 C/mTwo plastic balls, each of radius 17.9 cm, are placed so that there is a 36.6 cm space between them. The charge on one ball is +3.20 nC and the charge on the other is -4.70 nC. What is the magnitude of the electric field at a point directly midway between the two balls? 2.22×103 N/C 542 N/C 103 N/C 530. N/C
- The entire y axis is covered with a uniform linear charge density 3.6 nC/m. Determine the magnitude of the electric field on the x axis at x=9.6mThe figure shows a hollow metal sphere with inner radius 6.70 cm and outer radius 13.5 cm and a point charge at the center. The inner surface of the hollow sphere has a total charge of 3.70 nC and the outer surface has a total charge of -15.5 nC. Calculate the magnitude electric field a distance 18.0 cm from the center of the sphere.Three charges are on the plane (x,y) as reported on the picture. The two charges q on the x-axis are equal and at distance of 8 cm from the origin. The charge on the y-axis is negative and 3q and it is at 16 cm from the origin. Determine the x component of the electric field at the point P (0,5) cm. q P -39 q