Charges And Conducting SheetElectricity and Magnetism Level 4
Two charges are placed above an infinite conducting sheet as shown. The first has charge \( -6q \) and is placed a distance \( d \) above the sheet, whereas the second has charge \( 6q \) and is placed a distance \( d \) directly above the first (so that it is a total distance \( 2d \) away from the sheet).
Where \( k = 1/(4\pi\epsilon_0) \), suppose \( F = C \cdot kq^2/d^2 \) represents the magnitude of the force on the first charge (of charge \( -6q \)). What is \( C \)?