For regular pentagon system shown in figure, find force on $q_0$
For regular pentagon system shown in figure, find force on $q_0$
- A
$\frac{{KQ{q_0}}}{{{x^2}}}$
- B
$\frac{{2KQ{q_0}}}{{{x^2}}}$
- C
$\frac{{KQ{q_0}}}{{{2x^2}}}$
- D
zero
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Two identical charged spheres suspended from a common point by two massless strings of lengths $l,$ are initially at a distance $d\;(d < < l)$ apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity $v.$ Then $v$ varies as a function of the distance $x$ between the spheres, as
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- [AIEEE 2011]
How did Coulomb find the law of value of electric force between two point charges ?
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Reason : Forces will be same in electric field
Assertion : A deuteron and an $\alpha -$ particle are placed in an electric field. If $F_1$ and $F_2$ be the forces acting on them and $a_1$ and $a_2$ be their accelerations respectively then, $a_1 = a_2$.
Reason : Forces will be same in electric field
- [AIIMS 2015]
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