Question: 4 . A disk with radius ( R ) is uniformly charged with a total charge of ( Q ) .

4. A disk with radius \( R \) is uniformly charged with a total charge of \( Q \). Calculate the electric potential at the center of the disk (express the answer in terms of \(\mathrm{k},\mathrm{Q}\) and R ). Note: \( k \) is Coulomb's constant. Answer:
4 . A disk with radius \ ( R \ ) is uniformly

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