P25_056 - 56. Since the charge distribution is spherically...

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56. Since the charge distribution is spherically symmetric we may write E ( r )= 1 4 πε 0 q encl r , where q encl is the charge enclosed in a sphere of radius r centered at the origin. Also, Eq. 25-18 is implemented in the form: V ( r ) V ( r 0 R r 0 r E ( r ) dr . The results are as follows: For r>R 2 >R 1 V ( r q 1 + q 2 4 0 r and E ( r q 1 + q 2 4 0 r 2 . For R 2 >r>R 1 V ( r 1 4 0 µ q 1 r + q 2 R 2 and E ( r q 1 4 0 r 2
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