Please help me in this 2 hours A spherical cavity of radius 7.00cm is at the cen

Question

Please help me in this 2 hours

A spherical cavity of radius 7.00cm is at the center of a metal sphere of radius 16.5cm . A point charge 3.10/xC rests at the very center of the cavity, whereas the metal conductor carries no net charge. Determine the electric field at a point 5.50cm from the center of the cavity. determine the electric field at a point 55.0cm from the center. A flat slab of nonconducting material has thickness 2d. which is small compared to its height and breadth. Define the x axis to be along the direction of the slab's thickness with the origin at the center of the slab (see the figure (Figure 1)). If the slab carries a volume charge density p^{x) = - pQ in the region - d

Explanation / Answer

22.21

A) E1 = kQ/r^2

= (9 x 10^9) ( 3.10 x 10^-6) / ( 0.055)^2 = 9.22 x 10^6 N/C [ANS]

B) 0 N/M (since the E-field in a conductor with static charge always is equal to 0).

22.47

A) E = 0 (charges (-d and +d) cancel)

B) E1 = ?_o*(d-x)/?0

C) Left (towards -x axis)

D) -?_o*(x+d)/?0

E) Left (towards -x axis)

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