Space between two concentric conducting spheres of radii a and b (b a) is filled with a medium of resistivity ρ. The resistance between the two spheres will be:

Question

Space between two concentric conducting spheres of radii a and b (b > a) is filled with a medium of resistivity ρ. The resistance between the two spheres will be:

TuteeHUB · Accepted Answer

$\frac{{\rm{\rho }}}{{2{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} - \frac{1}{{\rm{b}}}} \right)$

TuteeHUB · Answer

$\frac{{\rm{\rho }}}{{4{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} - \frac{1}{{\rm{b}}}} \right)$

TuteeHUB · Answer

$\frac{{\rm{\rho }}}{{2{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} + \frac{1}{{\rm{b}}}} \right)$

TuteeHUB · Answer

$\frac{{\rm{\rho }}}{{4{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} + \frac{1}{{\rm{b}}}} \right)$

1.	Space between two concentric conducting spheres of radii a and b (b > a) is filled with a medium of resistivity ρ. The resistance between the two spheres will be:
A.	\(\frac{{\rm{\rho }}}{{4{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} - \frac{1}{{\rm{b}}}} \right)\)
B.	\(\frac{{\rm{\rho }}}{{2{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} - \frac{1}{{\rm{b}}}} \right)\)
C.	\(\frac{{\rm{\rho }}}{{2{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} + \frac{1}{{\rm{b}}}} \right)\)
D.	\(\frac{{\rm{\rho }}}{{4{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} + \frac{1}{{\rm{b}}}} \right)\)
Answer» B. \(\frac{{\rm{\rho }}}{{2{\rm{\pi }}}}\left( {\frac{1}{{\rm{a}}} - \frac{1}{{\rm{b}}}} \right)\)

Space between two concentric conducting spheres of radii a and b (b > a) is filled with a medium of resistivity ρ. The resistance between the two spheres will be:

Discussion

No Comment Found

Related MCQs

Reply to Comment