COLLEGE PHYSICS,VOLUME 1
COLLEGE PHYSICS,VOLUME 1
2nd Edition
ISBN: 9781319115104
Author: Freedman
Publisher: MAC HIGHER
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Chapter 22, Problem 42QAP
To determine

The electric field from time intervals 0 to 4 ms, 4 to 10 ms and 10 to 14 ms.

Expert Solution & Answer
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Answer to Problem 42QAP

The mass of the mediating particle. is, E04=6.62×104N/C, E410=4.4×106N/C and E1014=0N/C

Explanation of Solution

Given:

Diameter of ring, d=1.5cm

Radius of the ring, r=0.75cm=0.75×102m

Formula used:

Electric field is given by,

  E=ϕΔt

Where,

  E =Electric field

  ϕ = Electric flux

  Δt =Time interval

  R =Radius of earth

Electric field form t=0 to t=4ms is given by,

  E04=ΔϕΔtBut, Δϕ=(BA)t=0(BA)t=4=0(BA)t=4E04= ( BA ) t=4ΔtE04=B( π r 2 )ΔtE04=15× 10 3( 3.14× (0.75× 10 2 ) 2 )4× 10 3E04=6.62×104N/C

Electric field form t=4ms to t=10ms is given by,

  E410=ΔϕΔtBut, Δϕ=(BA)t=4(BA)t=10E410= ( BA ) t=4 ( BA ) t=10ΔtE410=( π r 2 )( B t=4 B t=10 )ΔtE410=( 3.14× (0.75× 10 2 ) 2 )( 15× 10 3 ( 10×103 ))6×× 10 3E410=4.4×106N/C

Electric field form t=10ms to t=14ms is given by,

  E1014=ΔϕΔtBut, Δϕ=(BA)t=10(BA)t=14E1014= ( BA ) t=10 ( BA ) t=14ΔtE1014=( π r 2 )( B t=10 B t=14 )ΔtE1014=( 3.14× (0.75× 10 2 ) 2 )( 10× 10 3 ( 10×103 ))6×× 10 3E1014=0N/C

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