Charge + q placed at point A is a distance 2L apart from B and C is the midpoint between A and B. The work done in moving charge + Q along the semicircle CRD is .
A
qQ2πε0L
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
9Q6πε0L
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
−qQ6πε0L
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
qQ4πε0L
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C−qQ6πε0L ui=kqQluf=kqQ3lw=(uf−ui)=−23kqQl=−qQ6πE0L