When a charged particle moving with velocity v is subjected to a magnetic field of induction B , the force on it is non-zero. This implies that:

Correct answer: D. angle between can have any value other than zero and 180^ aligned F & =q( V × B ) & =q v B θ aligned Therefore when θ=0^ ^ or θ=180^ ^ F=0

NEET 2006

Exam: NEET
Year: 2006
Subject: Physics
Chapter: Magnetic Effects of Current

NEET 2006 · Physics · Magnetic Effects of Current

When a charged particle moving with velocity v is subjected to a...

When a charged particle moving with velocity

\vec{v}

is subjected to a magnetic field of induction

\vec{B}

, the force on it is non-zero. This implies that:

Options

Aangle between is either zero or $180^{\circ}$
Bangle between is necessarily $90^{\circ}$
Cangle between can have any value other than $90^{\circ}$
Dangle between can have any value other than zero and $180^{\circ}$

Correct answer

D. angle between can have any value other than zero and $180^{\circ}$

Step-by-step solution

\begin{aligned} \vec{F} & =q(\vec{V} \times \vec{B}) \\ & =q v B \sin \theta \end{aligned}

Therefore when

\theta=0^{{}^{\circ}}

\theta=180^{{}^{\circ}}

F=0

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