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# (a) Sketch the electric field pattern around two positive point charges of magnitude 1$\mu \mathrm{C}$ placed close together. (b) Sketch the electric field pattern around two negative point charges of $-2 \mu \mathrm{C}$ , placed close together. (c) Sketch the pattern around two point charges of $+1 \mu \mathrm{C}$ and $-2 \mu \mathrm{C}$ , placed close together.

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##### Andy C.

University of Michigan - Ann Arbor

##### Marshall S.

University of Washington

### Video Transcript

Hello. Strain slash Start our discussion. Something about electric field bankers. Okay. For different jobs system. Suppose you have a charge system in which you have two positive charges. Now you have to draw the electric free lines. Badran for discharge system. Okay, so these charges are off a cold magnitude as they are. Positive charge is electric for airlines. Off. What off them are repelled with each other because, like, charges repel so their electric realize are also repent. So it will. Something like that. Remember, electric field lines never got each other and never discontinues. Okay, they are in surplus form. So basically the electric three lines of port charges are repelled with each other. This is the first system where we take to positive charge system? No. Let us suppose there are two negative charges system off to my curriculum. Okay, So as because similar charges always repel, but the's judges are off Negative sign. So electric field bill comes to worst. It's OK, so it will like that similarly on this site. So these are the electric field patrons for the negative charge system. Okay, Now let us suppose they are two charges. When is positive off one micro Coolum and another is negative off minus two. My curriculum. Now we have to make the electric felines. Okay, so basically, we know that electric free lines goes from positive charge. Toe wife's negative charge. So it will like that. But the magnetar off bless charges one micro Coolum and magnitude off minus toe are negative charges minus two. Micro column. It's means that it's meant to this greater than plus one. So basically more number off Charles lines will comes to us this negative side, so it will like that. Okay, So this is the system for Oh, it opposite charges system where one is positive. Charge in and there is a negative charge. Well, this is all for me for this radio. I hope you will like the video thing.

Other Schools
##### Andy C.

University of Michigan - Ann Arbor

##### Marshall S.

University of Washington