$A$ particle of mass $1 \times 10^{-26} \,kg$ and charge $1.6 \times 10^{-19} \,C$ travelling with a velocity $1.28 \times 10^6 \,ms^{-1}$ along the positive $X$-axis enters a region in which a uniform electric field $E$ and a uniform magnetic field of induction $B$ are present. If $E = -102.4 \times 10^3 \hat{k} \,NC^{-1}$ and $B = 8 \times 10^{-2} \hat{j} \,Wbm^{-2}$, the direction of motion of the particle is:

  • A
    along the positive $X$-axis
  • B
    along the negative $X$-axis
  • C
    at $45^{\circ}$ to the positive $X$-axis
  • D
    at $135^{\circ}$ to the positive $X$-axis

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Similar Questions

In the product $\overrightarrow{F} = q(\vec{v} \times \overrightarrow{B})$ where $\overrightarrow{B} = B \hat{i} + B \hat{j} + B_{0} \hat{k}$. Given $q = 1$,$\vec{v} = 2 \hat{i} + 4 \hat{j} + 6 \hat{k}$,and $\overrightarrow{F} = 4 \hat{i} - 20 \hat{j} + 12 \hat{k}$,what is the complete expression for $\overrightarrow{B}$?

If $E$ and $B$ are the magnitudes of electric and magnetic fields respectively in some region of space,then the possibilities for which a charged particle may move in that space with a uniform velocity of magnitude $v$ are

$A$ charge $q$ enters a region having electric field $E$ and magnetic field $B$ with velocity $v$. If it continues to move with the same velocity,then which of the following statements is not true?

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The dimension of magnetic field in $M, L, T$ and $C$ (coulomb) is given as:

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