18) Two charges 5 uC and -5 uC are placed apart 02 m. Calculate
a) Net electric field at mid-point of the system.
b) Force on 1 uC charge placed at mid point.
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ASSUME A UNIT POSITIVE CHARGE AT THE MIDPOINT DUE TO A POSITIVE 5uC THEIR IS REPULSION AND DUE TO -5uC CHARGE THEIR IS ATTRACTION BOTH ACT IN SME DIRECTION
Enet=E1+E2
E1=9X10^9X5/1=45X10^3
EI+E2=9X10^4
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