A negative charge is moving faster along the x-axis. Specify the directionof the electric field.+xalong-x axisNo enough informationalong + x axisOpposite to the direction of acceleration

Answered: A negative charge is moving faster…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter5: Electric Charges And Fields

Section: Chapter Questions

Problem 92P: An electron and a proton, each starting from rest, are accelerated by the same uniform electric...

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Question

A negative charge is moving faster along the x-axis. Specify the direction
of the electric field.
+x
along-x axis
No enough information
along + x axis
Opposite to the direction of acceleration

Expert Solution

Step 1

Here we are given a charge which is travelling with acceleration.

Charged particle moves under the application of an external field. +ve charge tends to feel force in the field direction and hence move along the similar direction. But a -ve charge experiences a force against the field direction and hence tend to move along the reverse direction.

Step 2

As per the given figure, a -ve charge is moving along the +x axis with acceleration; therefore, applied electric field would be in -ve x-direction.
Since the particle is a -ve charge that means it is proceeding in the opposite path of the external electric field.

Therefore, option (a) and (d) are correct options.

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