15.3 Electric Fields | General Physics

[@user-qs8he1ml3k]

Another banger vid from chad. I finished biochem already but I'm hyped for other students that will get a biochem playlist one day haha

[@ChadsPrep]

Excellent - thanks and Happy Studying!

[@abrahamhamadi2804]

Just conceptually, why do we need to use a positive test charge or even a test charge at all to determine when the electric field will be zero?

[@user-ol1pn5gx8r]

I like the shirt. Thanks for the video.

[@ChadsPrep]

Thanks for watching!

[@alibilginler]

13:36 If so, the test charge can also be used to find the point where the electric field is strongest.

[@ChadsPrep]

Thanks for putting the time in 👍 test charges tell us the magnitude and direction of the electric field at that point

[@Czkyhna]

why didnt we convert mm to m in the last question? thanks for ur hard work sir!

[@selinm]

on both sides of the equation, you can think of the numbers in the denominator multiplied by 10^-4, and we would cancel it, so no need to convert both sides to m. that is, if both parts are of the same unit, no problem

[@alibilginler]

So, is the test charge always positive?

[@ChadsPrep]

Since the direction of the electric field is by definition the direction of the force it would exert on a positive charge, so it is often more inituitive to use a positive test charge, yes.

[@solawo]

Lovely

[@ChadsPrep]

Thank you

[@alibilginler]

For what other purposes is the test charge used?

[@ChadsPrep]

Hey Ali Mahmud, can you give a time in the video relevant to your questions please

[@alibilginler]

Ok.@@ChadsPrepBy the way, my name is Ali Mahmud Ali

[@Macedonia2404]

Sir how prepare Electro magnetic oil.pls explain at least next vedio.we need this topic

[@ChadsPrep]

Can you describe what you mean by electromagnetic oil?

[@FirstName-qe4ow]

​@@ChadsPrepsir he may be asking about the oil or liquid we put in a transformer?

[@Macedonia2404]

pls explain the using chemicals inorganic and organic

[@ChadsPrep]

Can you elaborate on this question a little?

[@Macedonia2404]

@@ChadsPrep sir electro magnetic oil means slight radiation level mix with some radioactive isotope materials i.e para magnetic and diamagnetic inorganic compounds.after that I don't how to pass electrical condense.i think it may be passing through North pole magnetic field.

[@alibilginler]

As I understand it, the electric field is zero at the point where the net force is zero.

[@ChadsPrep]

Or the charge is zero, yes

[@user-ol1pn5gx8r]

I like the shirt. Thanks for the video.

[@ChadsPrep]

Thank you too!