Please solve this question and also explain it in detail - Physics - Electric Charges And Fields

Question

Please solve this question and also explain it in detail

Debalina Deb · Accepted Answer

Dear student,

<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_6093f80309731%20jpg"
style="width: 999px; height: 1022px;">
Regards,

Please solve this question and also explain it in detail.