Two points P and Q are maintained at the pote | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The work done $W$ in moving a charge $q$ from point $P$ to point $Q$ is given by the formula: $W = q(V_Q - V_P)$.Here,the charge $q$ is the total

Vedclass · Accepted Answer

$2.24 	imes 10^{-16} \ J$

Vedclass · Answer

(D) The work done $W$ in moving a charge $q$ from point $P$ to point $Q$ is given by the formula: $W = q(V_Q - V_P)$.Here,the charge $q$ is the total charge of $100$ electrons. Since the charge of one electron is $-1.6 	imes 10^{-19} \ C$,the total charge is $q = 100 	imes (-1.6 	imes 10^{-19} \ C) = -1.6 	imes 10^{-17} \ C$.The potentials are $V_P = 10 \ V$ and $V_Q = -4 \ V$.Substituting these values into the formula:$W = (-1.6 	imes 10^{-17} \ C) 	imes (-4 \ V - 10 \ V)$$W = (-1.6 	imes 10^{-17}) 	imes (-14) \ J$$W = 22.4 	imes 10^{-17} \ J = 2.24 	imes 10^{-16} \ J$.

Two points $P$ and $Q$ are maintained at the potentials of $10 \ V$ and $-4 \ V$,respectively. The work done in moving $100$ electrons from $P$ to $Q$ is

Similar Questions

$90 \ J$ of work is done to move an electric charge of magnitude $3 \ C$ from a place $A$,where potential is $-10 \ V$,to another place $B$,where potential is $V_1 \ V$. The value of $V_1$ is: (in $V$)

Two particles $A$ and $B$ having the same mass have charges $+q$ and $+4q$ respectively. When they are allowed to fall from rest through the same electric potential difference,the ratio of their speeds $v_A$ to $v_B$ will be:

$A$ radius of a spherical charged shell is $10 \ cm$ and the electric potential on its surface is $100 \ V$. Then,the potential at $2 \ cm$ from the centre of the shell will be $.......$ (in $V$)

Explain electrostatic potential energy difference and give the noteworthy comments on it.

$A$ bullet of mass $2\,g$ has a charge of $2\,\mu C$. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of $10\,m/s$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module