Magnetic Effects & Magnetism

JEE Main level, single correct, medium

121 of 276

Question 121 of 276

The electrostatic force (F1→)\left(\overrightarrow{F_1}\right) and magnetic force (F⃗2)\left(\vec{F}_2\right) acting on a charge qq moving with velocity vv can be written :

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Answer: (A) F⃗1=qE⃗,F⃗2=q(V⃗×B⃗)\vec{F}_1=q \vec{E}, \vec{F}_2=q(\vec{V} \times \vec{B})

$\begin{aligned}
& \overrightarrow{\mathrm{F}}_1=\mathrm{q} \overrightarrow{\mathrm{E}} \\
& \overrightarrow{\mathrm{F}}_2=\mathrm{q}(\overrightarrow{\mathrm{V}} \times \overrightarrow{\mathrm{B}})
\end{aligned}$
(Theory)

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