A particle having a mass of $10^{- 2}\ kg$ carries a charge of $5 imes 10^{- 8}C$. The particle is given an initial horizontal velocity of $10^{5}\ ms^{- 1}$ in the presence of electric field $\overrightarrow{E}$ and magnetic field $\overrightarrow{B}$. To keep the particle moving in a horizontal direction, it is necessary that (1) $\overrightarrow{B}$ should be perpendicular to the direction of velocity and $\overrightarrow{E}$ should be along the direction of velocity (2) Both $\overrightarrow{B}$ and $\overrightarrow{E}$ should be along the direction of velocity (3) Both $\overrightarrow{B}$ and $\overrightarrow{E}$ are mutually perpendicular and perpendicular to the direction of velocity (4) $\overrightarrow{B}$ should be along the direction of velocity and $\overrightarrow{E}$ should be perpendicular to the direction of velocity Which of the following pairs of statements is possible

Question

A particle having a mass of $10^{- 2}\ kg$ carries a charge of $5 	imes 10^{- 8}C$. The particle is given an initial horizontal velocity of $10^{5}\ ms^{- 1}$ in the presence of electric field $\overrightarrow{E}$ and magnetic field $\overrightarrow{B}$. To keep the particle moving in a horizontal direction, it is necessary that (1) $\overrightarrow{B}$ should be perpendicular to the direction of velocity and $\overrightarrow{E}$ should be along the direction of velocity (2) Both $\overrightarrow{B}$ and $\overrightarrow{E}$ should be along the direction of velocity (3) Both $\overrightarrow{B}$ and $\overrightarrow{E}$ are mutually perpendicular and perpendicular to the direction of velocity (4) $\overrightarrow{B}$ should be along the direction of velocity and $\overrightarrow{E}$ should be perpendicular to the direction of velocity Which of the following pairs of statements is possible

Dr. Abubacker · Accepted Answer

The correct answer is Option C: (2) and (3).

Explanation

Reviewed by Dr. Abubacker

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