The electric field at a radial distance of 49.6cm from the thin charged wire sho

Question

The electric field at a radial distance of 49.6cm from the thin charged wire shown in the figure has a magnitude of 3.61?104N/C . What is the magnitude of the charge per length on this wire? At what distance from the wire is the magnitude of the electric field equal to 1/2( 3.61?104N/C )?

The electric field at a radial distance of 49.6cm from the thin charged wire shown in the figure has a magnitude of 3.61?104N/C . What is the magnitude of the charge per length on this wire? At what distance from the wire is the magnitude of the electric field equal to 1/2( 3.61?104N/C )?

Explanation / Answer

E*2rl=l/0

E=/2r0

=2r0*E=9.96*10-7C/m

Since E1/r

the electric field is half at a distance equal to 2r =0.496*2=0.992m

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