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Q: Need help with a, b, and c. Thank you!
A: Given:
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All questions a and c 

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Use the exact expression for the E₂ field on the axis of symmetry of the disk: Z Z Ē₂ = k₂2no2 2 ( 1²1 - (R² +²2²) ²/2) a) Plot E₂ (z) for values of z above and below the disk. c) Verify that the field is that of a point charge for z » a, where Q = σTR². Hint: Apply the Binomial Theorem
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Transcribed Image Text:Use the exact expression for the E₂ field on the axis of symmetry of the disk: Z Z Ē₂ = k₂2no2 2 ( 1²1 - (R² +²2²) ²/2) a) Plot E₂ (z) for values of z above and below the disk. c) Verify that the field is that of a point charge for z » a, where Q = σTR². Hint: Apply the Binomial Theorem
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