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Need help with electric field

  • Thread starter haha
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  • #1
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Homework Statement



please some one help me with this problem:

Consider a thin spherical shell of radius 18.7cm with a total charge of 2.60μC distributed uniformly on its surface. Find the electric field, in N/C, at a radius of 32.4cm from the center of the charge distribution.


i used this equation:
E=Q/(4 x Pi x Eo x r^2)



this question was a quiz and i think i got it wrong. please help

Homework Equations


E=Q/(4 x Pi x Eo x r^2)

in this case : Q is 2.6e-6
and r= 32.4
Eo=8.854e-12

The Attempt at a Solution


E=2.6e-6/( 4 x pix 8.85e-12 x 32.4^2)
= 22.26N/C
i plugged in all the number and i got 22.26 whick is wrong. dont know wat i did wrong here
 
Last edited:

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
5
Write the distance in meter.
 

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