Saved Bookmarks
| 1. |
Four point charges q_(A) = 2 muC, q_(B)=-5muC, q_(C)=2mu C and q_D=-5 muC are located at the corners of a square ABCD of side 10cm. What is the force on a charge of 1muC placed at the centre of the square? |
|
Answer» Solution :Forces on the charge `1 muC` at O due to the CHARGES `-5muC and -5muC` are EQUAL and OPPOSITE. So they cancel each other. SIMILARLY the forces due to `+2muC and +2 muC" on "1muC` at O, also cancel each other. So the force on a charge of `1 muC` placed at the centre of the square is zero. 
|
|