electric field doubt

Can someone explain this to me? Isn't the electric field supposed to be lambda/2pi epsilon r and not lamba/4 pi epsilon r
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@Gyro Gearloose
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Fusion
FusionOP5w ago
I do not understand the 3rd line which I have marked with the red marker
Opt
Opt5w ago
Last statement is just a typo Ex is clearly λ/2πεr
Fusion
FusionOP5w ago
I thought so too but then there's also this
Fusion
FusionOP5w ago
No description
Fusion
FusionOP5w ago
Oh wait nvm I understand this image
Opt
Opt5w ago
Yes? There's no mistake.
Fusion
FusionOP5w ago
Thanks
Opt
Opt5w ago
Anything else?
Fusion
FusionOP5w ago
Not for now Ill let you know after I complete all the derivations for electric fields
Opt
Opt5w ago
Ok
iTeachChem
iTeachChem2w ago
we good?
Fusion
FusionOP2w ago
Yes sir Sorry for replying late. I didnt see it until now +close +help
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Fusion
FusionOP2w ago
+solved @Opt
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