PLEASE HELP! And show work! :( In each of these eight pictures, there is a pair

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PLEASE HELP! And show work! :(

In each of these eight pictures, there is a pair of charges. The charge on the left is always a+2Q charge. The charge on the right is either-Q, -3Q, +Q, or +3Q, in some order in pictures A-D and in +20 +20 some order (maybe a different order) in pictures E-H. The charges are the same distance apart in every picture. Pictures A-D show one equipotential line each, as follows: +25 V in A, 0 V in B and C, and +44 V in D Pictures E-H show electric field 2Q 20 vectors near the two charged particles. (a) In pictures A- D, label the unmarked particle with its charge. (b) In pictures E- H, label the unmarked particle with its charge. t f t O +20 0+20 (c) For pictures A-D, shade in any regions where the net electric potential is negative. (d) For the situations A-D, rank them, from most positive to most t t t t t t t t t negative, based on the electric potential energy of the interacting 1 t t 1 charges. Your answer should have a form something like B A C D 20 O+20 (e) For the situations E-H, rank them, from most positive to most negative, based on the magnitude of the net electric field at the point halfway between the charges. Your answer should have a form something like F>E G H

Explanation / Answer

A) in fig A: unmarked particle has charge -Q

in fig B: unmarked particle has charge -3Q

in fig C: unmarked particle has charge +Q

in fig D: unmarked particle has charge +3Q

B) in fig E: there is attraction between the particles and also strong so unmarked particle has charge -3Q

in fig F: there is attraction between the particles and weak so unmarked particle has charge -Q

in fig G: there is repulsion between the particles and also weak so unmarked particle has charge +Q

in fig H: there is reulsion between the particles and also strong so unmarked particle has charge +3Q

C) in fig A: positive charge is dominating so net electric field is always positive

in fig B: net electric field is negative near the region of -3Q charge

In fig C and D: both the charges are positive so there is repulsion due to positive charge. Hence, net electric field is always positive

E) as WO know that electric field E= q1*q2/4€*r^2

I.e. E is proportional to the product of charges

In fig E: E is proportional to -3Q*2Q= -6Q

In fig F: E is proportional to -Q*2Q= -2Q

In fig G: E is proportional to Q*2Q= 2Q

In fig H: E is proportional to 3Q*2Q= 6Q

So, H>G>F>E here H is most positive and E is most negative

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