2. Find the expression of potential at point 'P' due to the charges in the figure....

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2. Find the expression of potential at point 'P' due to the charges in the figure. 3 3. A disk of radius 'a' has a total charge 'Q'. Express the potential at point 'P', (i) 'a' unit away from the center of the disk; (ii) at the center of the disk. Also, find out at which point the potential will be minimum or maximum? Write the maximum and minimum potential for the disk if R=10cm and Q=10 nC. 1+1+2" +q 2. Find the expression of potential at point 'P' due to the charges in the figure. 3 3. A disk of radius 'a' has a total charge 'Q'. Express the potential at point 'P', (i) 'a' unit away from the center of the disk; (ii) at the center of the disk. Also, find out at which point the potential will be minimum or maximum? Write the maximum and minimum potential for the disk if R=10cm and Q=10 nC. 1+1+2" +q