Question
Question: A bob of mass 'm' is tied with a thread and is made to move in a circular path on a frictionless tab...
A bob of mass 'm' is tied with a thread and is made to move in a circular path on a frictionless table surface about point 'O' as shown in diagram. A hypothetical electric field in radial direction exists along the table surface. In this condition the bob is uncharged and tension in thread is T. If bob is given some charge-
A
Tension in thread must increase
B
Tension in thread may increase or decrease
C
Tension in thread will remain unchanged
D
Tension in thread must decrease
Answer
Tension in thread may increase or decrease
Explanation
Solution
Tension may increase or decrease depending on the nature of charge given to sphere.
