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My name is Ann [436]
3 years ago
12

100 POINTS. PLEASE EXPLAIN

Physics
2 answers:
Valentin [98]3 years ago
6 0

Answer:

Explanation:

(b) cuz the 1st n 3nd row cancel out, net electric field will go from +3Q to -3Q. the direction is right.

Assoli18 [71]3 years ago
3 0

Answer:

Explanation:

Note the charge balls on the top and bottom row are identical. So those charges cancel each other out. The only charges in the net electric field are the two in the middle row.

Electric field strength = k*Q/r^2

= (8.99 *10^9) * (3-(-3)) * 5*10^(-6) / (2*0.5)^2

= 269700 N/C

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