Question

how to convert joule into electron volt ?? plz give correct answer only ..​

Answer 1

Answer:

1 joule =

6.242 × 1018 electronvolts

Energy

1

Joule

6.242e+18

Electronvolt

Formula

for an approximate result, multiply the energy value by 6.242e+18

please follow me and mark as BRAINLIST

Answer 2

Answer:

1 Joule = Energy required to move a charge of 1 Coulomb through a potential difference of 1 volt.

Thus 1 Joule = 1 Coulomb x 1 Volt

1 eV = Energy required to move an electron (Charge of an electron = 1.6 x 10^-19 Coulomb) through a potential difference of 1 Volt

Thus 1 eV = 1.6 x 10^-19 Coulomb x 1 Volt = 1.6 x 10^-19 Joule

Thus 1 eV/1.6 x 10^-19 = 1 Joule

0.625 x 10^19 eV = 1 Joule

An electron volt is the amount of energy required to move an electron across a potential difference of 1 volt.

The charge on an electron is [math] -1.6 \times 10^{-19} [/math] coulombs.

In general, work = force times distance (scalar product).

In an electric field of strength [math] \dfrac{ E }{ d } [/math] volts per meter, the force F on a charge Q is:

[math] F = \dfrac{ QE }{ d } [/math] and if the charge is in coulombs and field strength is in volts per meter then force will be in newtons.

So

[math] W = Fd = \left( \dfrac{ QE }{ d } \right) \cdot d = QE [/math]

where E is the total potential difference in volts.

The charge on an electron is [math] -1.6 \t[/math]