A particle of charge −$$16$$ × $$10$$−$$18$$ C moving with velocity $$10$$ m s−$$1$$ along $$x-axis$$ enters a region where a magnetic field of induction B exists along the $$y-axis$$ and an electric field of magnitude $$104$$ $$V/m$$ exists along the negative $$z-axis$$. If the charged particle continues moving along the $$x-axis$$, the magnitude of B is

Question

A particle of charge −$$16$$  ×  $$10$$−$$18$$  C moving with velocity $$10$$  m  s−$$1$$ along $$x-axis$$  enters a region where a magnetic field of induction B exists along the $$y-axis$$ and an electric  field of magnitude $$104$$ $$V/m$$ exists along the negative $$z-axis$$. If the charged particle continues moving along the $$x-axis$$, the magnitude of B is

Infinity Learn · Accepted Answer

Since particle is moving undeflected.So, $$qE=qvB$$ ⇒ $$B=E/v=10410=103$$  $$Wb/m2$$

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