Question Text
Question 1 :
Five balls numbered $1, 2, 3, 4$ and $5$ are suspended using separate threads. The balls $(1, 2), (2, 4)$ and $(4, 1)$ show electrostatic attraction, while balls $(2, 3)$ and $(4, 5)$ shown repulsion. Therefore, ball $1$ must be :
Question 2 :
<span>Charge 1 attracts Charge 2, Charge 2 repels Charge 3, and Charge 3 attracts Charge 4. </span><span>Which of the following option must hold good for the given condition of f</span>our point charges? 
Question 4 :
What will happen when we rub a glass rod with silk cloth?
Question 5 :
The number of electrons that must be removed from an electrically neutral silver dollar to give it a charge of $+2.4C$ is
Question 7 :
A redistribution of electrical charge in an object, caused by the influence of nearby charges is termed as<br>
Question 8 :
<p>Three charge<b> +4q, Q</b> and <b>q</b> are placed in a straight line of length<b><i> $l$</i></b> at points distance 0, <span>$\dfrac{l}{2}$ and $l$ respectively. What should be the value of Q in order to make the net force on </span><span>q to be zero?</span></p>
Question 9 :
In winter season, a mild spark is often seen when a man touches somebody else's skin. Why?