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8. A disk of radius a/4h 0 is placed in ...

8. A disk of radius a/4h 0 is placed in the X-1 od of length a carrying placed on the x-axis charges -70 an (-30/4, 3a/4, 0) ro formed by six surface ca 4 having a uniformly distributed charge 6C he X-y plane with its centre at (-a/2, 0, 0). A carrying a uniformly distributed charge 8C is ex-axis from x= a/4 to x = 5a/4. Two point -70 and 3C are placed at (a/4, -a/4,0) and 20/4.0), respectively. Consider a cubical surface u six surfaces x= = a/2, y = ta/2, z = ta/2. The Hvis flux through this cubical surface is [IIT-JEE 20091 X o

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