A conducting rod of R1 = 1.3mm and length of 11m is inside a thin cylindrical shell of R2 = 13mm of the same length. If the charge of the rod Q1 = 3.9pC and the charge of the shell is Q2 = -6.2pC. What is the magnitude of the electric field at r = 31mm? Show answer choices A -0.188 N/C R₂ R₁ Q1 Q2 ...

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.