A nonconducting sphere has radius R = 2.38 cm and uniformly distributed charge q

Question

A nonconducting sphere has radius R = 2.38 cm and uniformly distributed chargeq = +6.00 fC. Take theelectric potential at the sphere's center to beV0 = 0. (a) What is V at radial distancer = 1.45 cm?
1    mV

(b) What is V at radial distance r =R?
2 mV


I was able to get the second answer but I need help with thefirst. Will rate
(a) What is V at radial distancer = 1.45 cm?
1    mV

(b) What is V at radial distance r =R?
2 mV


I was able to get the second answer but I need help with thefirst. Will rate

Explanation / Answer

potential iside the nonconducting sphere V = K q /R where K = coulom,s constant = 8.99 * 10 ^ 9 N m ^ 2 / C^ 2            q= charge = 6 * 10 ^ -15 C            R = radius = 2.38 cm = 0.0238 m substitute values we get V = 2.266 * 10 ^ -3 Volt                                         = 2.266 m V

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