What is the ratio of the forces acting on - - particle and a proton -both subjected to the same electric field-

The correct option is D 2:1 Force = q E So, F_pF_α = q_pEq_αE =12 #160; #160; (because charge of α is twice of proton) ⇒F_αF ...

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Standard XII

Physics

Force on a Current Element

What is the r...

Question

What is the ratio of the forces acting on $α -$ particle and a proton ,both subjected to the same electric field?

2 : 3

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1 : 2

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3 : 2

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2 : 1

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Solution

The correct option is D $2 : 1$
Force $= q E$
So, $\frac{F_{p}}{F_{α}} = \frac{q_{p} E}{q_{α} E}$ $= \frac{1}{2}$ (because charge of $α$ is twice of proton)
$\Rightarrow \frac{F_{α}}{F_{p}} = \frac{2}{1}$

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What is the ratio of the forces acting on α− particle and a proton ,both subjected to the same electric field?

The correct option is D 2:1Force =qESo, FpFα=qpEqαE=12 (because charge of α is twice of proton)⇒FαFp=21

What is the ratio of the forces acting on $α -$ particle and a proton ,both subjected to the same electric field?

The correct option is D $2 : 1$
Force $= q E$
So, $\frac{F_{p}}{F_{α}} = \frac{q_{p} E}{q_{α} E}$ $= \frac{1}{2}$ (because charge of $α$ is twice of proton)
$\Rightarrow \frac{F_{α}}{F_{p}} = \frac{2}{1}$