Question

Please explain me how ??
no spams please.....​

Answer 1

Answer:

Zero intensity means Zero Force

Ad mid point

F= Kq1q2/r^2

q - same

r -same

Force same

cancel out each other

Field due to Positive Charge is outward

2)

In Series Combination add Battery emf

5n

n -1.5

7.5 V

Thanks for Reading