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

$A$ hollow metal sphere of radius $5\, cm$ is charged such that the potential on its surface is $10\, V$. The potential at the centre of the sphere is

Assertion : Electric potential and electric potential energy are different quantities.
Reason : For a system of a positive test charge and a point charge,electric potential energy $=$ electric potential.

Which physical quantities are represented by $X$ and $Y$ in the given graph? ($Y$ represents the first quantity.)

Which of the following is a dimension of volt?

Calculate the electrostatic potential energy of a system of two charges $7\ \mu C$ and $-2\ \mu C$ placed at points $(-9\ cm, 0, 0)$ and $(9\ cm, 0, 0)$ respectively (in the absence of an external field).

Vedclass Test Series

Exam Paper Generator

Online Exam Module