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A block of mass m containing a net posit...

A block of mass m containing a net positive charge q is placed on a smooth horizontal table which terminates in a vertical wall as shown in figure(29-E2). The distance of the bolck from the wall is d. A horizontal electric field E to towards right is switched on. Assuming elastic collisions find the time period of the resulting oscillatory motion. Is it a simple harmonic motion?

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A block of mass n containing a net positive charge q is placed on a smooth horizontal table which terminates in a vertical wall as shown in figure(29-E2). The distance of the bolck from the wall is d. A horizontal electric field E to towards right is switched on. Assuming elastic collisions find the time period of the resulting oscillatory motio. Is it a simple harmonic motion?

A block of mass m having a charge q is placed on a smooth horizontal table and is connected to a wall through an unstressed spring of spring constant k as shown in figure(29.E1) . A horizontal electric field E parallel to the spring is switched on. Find the amplitude of the resulting SHM of the block.

Knowledge Check

  • A block of mass m containing a net negative chage -q is placed on a froctionless horizontal tabe and is connected to a wall through an unstreached spring of spring constant k. If the horizontal electric field E parallel to spring is switched on , then the maximum compression of the spring is

    A
    `sqrt(qE//k)`
    B
    `2qE//k`
    C
    `qE//k`
    D
    zero

  • 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.

    A
    `2pi sqrt(l/g)`
    B
    `2pi sqrt({l/(g+(qE)/m)})`
    C
    `2pi sqrt({l/(g-(qE)/m)})`
    D
    `2pi sqrt(l/sqrt(g^(2)+((qE)/m)^(2)))`

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    A particular of mass m and having a charge q is placed on a smooth horizontal table and is connected to walls through unstressed springs of constant k (shown in figure). A horizontal electric field E parallel to spring is switched On. The maximum speed of the particle

    A ball having charge to mass ratio 8 muc /g is placed at a distance of 10 cm from a wall.Suddenly an electric field 100Nm^-1 is switched on. Assuming collisions to be elastic.Find Time period of oscillations.

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