Home
Class 12
PHYSICS
A pendulum bob of mass 80mg and carrying...

A pendulum bob of mass `80mg` and carrying a charge of `2 times10^(-4)` coulomb is at rest in a uniform horizontal electric field of `20kV/m`.The tension in the thread of the pendulum is x times`10^(-4)` N.Find value of x?

Answer

Step by step text solution for A pendulum bob of mass 80mg and carrying a charge of 2 times10^(-4) coulomb is at rest in a uniform horizontal electric field of 20kV/m.The tension in the thread of the pendulum is x times10^(-4) N.Find value of x? by PHYSICS experts to help you in doubts & scoring excellent marks in Class 12 exams.

Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

A pendulum bob of mass 80mg and carrying a charge of 2xx 10^(-8)C is at rest in a uniform, horizontal electric field of 20k Vm^-1. Find the tension in the thread.

A pendulum bob of mass m = 80 mg, carrying a charge of q=2xx10^(-8)C , is at rest in a horizontal, uniform electric field of E = 20,000 V/m. The tension T in the thread of the pendulum and the angle alpha it makes with vertical, is (take g=9.8m//s^(2) )

Knowledge Check

  • A pendulum bob of mass 30.7 xx 10^(-6)kg and carrying a chargee 2 xx 10^(-8)C is at rest in a horizontal uniform electric field of 20000V//m . The tension in the thread of the pendulum is (g = 9.8 m//s^(2))

    A
    `3 xx 10^(4)N`
    B
    `4 xx 10^(-4)N`
    C
    `5 xx 10^(-4)N`
    D
    `6 xx 10^(-4)N`

  • A pendulum bob of mass m charge q is at rest with its string making an angle theta with the vertical in a uniform horizontal electric field E. The tension in the string in

    A
    `(mg)/(sintheta)`
    B
    `mg`
    C
    `(qE)/(sintheta)`
    D
    `(qE)/(costheta)`

  • The bob of a simple pendulum has mass 2g and a charge of 5.0muC . It is at rest in a uniform horizontal electric field of intensity 2000V//m . At equilibrium, the angle that the pendulum makes with the vertical is: (take g=10m//s^(2) )

    A
    `tan^(-1)(2.0)`
    B
    `tan^(-1)(0.2)`
    C
    `tan^(-1)(5.0)`
    D
    `tan^(-1)(0.5)`

    • Similar Questions

    Explore conceptually related problems

    A pendulum bob of mass 80 mg and carrying charge of 3 xx 10 ^(-8) C is placed in an horizontal electric field. It comes to equilibrium position at an angle of 37^@ with the vertical. Calculate the intensity of electric field. (g = 10 m//s^2 )

    A uniform electric field of 3xx10^4 N/C is applied iin a horizontal direction . A pendulum bob of mass 90 mg and carrying a charge of 1.5xx10^(-8) C is suspended through a string of length 1m. Calculate tension developed in the string and the angle made by the string with the vertical .

    The bob of a pendulum of mass 8 mu g carries an electric charge of 39.2xx10^(-10) coulomb in an electric field of 20xx10^(3) volt/meter and it is at rest. The angle made by the pendulum with the vertical will be

    A protons of mass m charge c is released form rest in a uniform electric field of strength E .The time taken by it to travel a distance d in the field is

    A simple pendulum has a length l & mass of bob m. The bob is given a charge q coulomb. The pendulum is suspended in a uniform horizontal electric field of strength E as shown in figure, then calculate the time period of oscillation when bob is slightly displaced from its mean position.

    Home
    Profile