Find the number of electrons transferred betw | vedclass

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

Question

(A) Given: Potential difference $(V) = 20 \ V$,Work $(W) = 40 \ J$.We know that the work done in moving a charge $(Q)$ between two points is given by

Vedclass · Accepted Answer

$1.25 	imes 10^{19}$

Vedclass · Answer

(A) Given: Potential difference $(V) = 20 \ V$,Work $(W) = 40 \ J$.We know that the work done in moving a charge $(Q)$ between two points is given by the formula:$W = Q 	imes V$Substituting the given values:$40 \ J = Q 	imes 20 \ V$$Q = \frac{40 \ J}{20 \ V} = 2 \ C$We also know that the total charge $(Q)$ is related to the number of electrons $(n)$ by the relation:$Q = n 	imes e$where $e$ is the elementary charge,$e = 1.6 	imes 10^{-19} \ C$.Therefore,the number of electrons $(n)$ is:$n = \frac{Q}{e} = \frac{2 \ C}{1.6 	imes 10^{-19} \ C} = 1.25 	imes 10^{19}$

Find the number of electrons transferred between two points kept at a potential difference of $20 \ V$ if $40 \ J$ of work is done.

Similar Questions

Identify the circuit (Figure) in which the electrical components have been properly connected.

Two resistors are connected in series as shown in the diagram. $(i)$ What is the current through the $5 \, \Omega$ resistor? (ii) What is the current through $R$? (iii) What is the value of $R$? (iv) What is the value of $V$?

Which has a greater resistance$-$a $100$ $W$ bulb or a $60$ $W$ bulb?

The filament of an electric bulb is made of tungsten. Why?

Vedclass Test Series

Exam Paper Generator

Online Exam Module