8. In order to have equal surface charge densities on the outer surfaces of both the shells, the following conditions should be satisfied (b) d= 2b and e = /2a (d) d> b and e = 2a (a) d = 4b and e = 2a (c) d = /2b and e >a

University Physics Volume 2
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Chapter5: Electric Charges And Fields
Section: Chapter Questions
Problem 94P: A proton enters the uniform electric field produced by the two charged plates shown below. The...
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Common data for Q. 7 and Q. 8.
Consider two concentric conducting spherical shells with inner and outer radii a, b and c, d as shown in
the figure. Both the shells are given Q amount of positive charges.
7.
The electric field in different regions are
(a) E= 0 for r<a; E =-i for a <r<b; E=0 for b<r<c;E
4TE,
zf for r>d
CAREER ENDEAVOUR.
(b) E= î for r<a; E0 for ar<b; 4TEr
for bre; E=-
-î for r<d
Ē= 0b<r<c;Ë =-
20
-î for r>d
(c) E =-,i for r<a; E = 0 for a < r<b;
4περ
2Q
(d) Ē = 0 for r> a; = 0 for a <r<b; Ē=-
gf for b <r<c; =-
4TE,r²
î for r>d
In order to have equal surface charge densities on the outer surfaces of both the shells, the following
conditions should be satisfied
8.
(b) d= 2b and c = 2a
(d) d> b and c = 2a
(a) d = 4b and c = 2a
(c) d = /2b and e>a
Transcribed Image Text:Common data for Q. 7 and Q. 8. Consider two concentric conducting spherical shells with inner and outer radii a, b and c, d as shown in the figure. Both the shells are given Q amount of positive charges. 7. The electric field in different regions are (a) E= 0 for r<a; E =-i for a <r<b; E=0 for b<r<c;E 4TE, zf for r>d CAREER ENDEAVOUR. (b) E= î for r<a; E0 for ar<b; 4TEr for bre; E=- -î for r<d Ē= 0b<r<c;Ë =- 20 -î for r>d (c) E =-,i for r<a; E = 0 for a < r<b; 4περ 2Q (d) Ē = 0 for r> a; = 0 for a <r<b; Ē=- gf for b <r<c; =- 4TE,r² î for r>d In order to have equal surface charge densities on the outer surfaces of both the shells, the following conditions should be satisfied 8. (b) d= 2b and c = 2a (d) d> b and c = 2a (a) d = 4b and c = 2a (c) d = /2b and e>a
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