The bob of a perpendicular is positively charged.Another identical charge is placed at the point of suspension of the pendulum.The time period of pendulum

The bob of a simple pendulum is positively charged. A negatively charged metal plate is placed just below the bob as the pendulum starts oscillating. How will it affect the time period of the pendulum?

The bob of a simple pendulum of period T is given a negative charge. If it is allowed to oscillate with an identical charge at the point of suspension. The new time period will be

A pendulum of length L carries a negative charge - q on the bob. A positive charge +q is held at the point of support . Then, the time period of the bob is

A pendulum of length L carries a negative charge - q on the bob. A positive charge +q is held at the point of support . Then, the time period of the bob is

A bob of a simple pendulum of length l is negatively charged. A positively-charged metal plate is placed just below the bobt and the pendulum is made to oscillate. What will be the effect on the time period of the pendulum?