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When a particle of charge 10 muC is brou...

When a particle of charge 10 `muC` is brought from infinity to a point P, 2.0 mJ of work is done by the external forces. What is the potential at P?

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AI Generated Solution

To find the electric potential at point P when a charge of 10 µC is brought from infinity and 2.0 mJ of work is done by external forces, we can follow these steps: ### Step 1: Understand the relationship between work done, charge, and electric potential. The work done (W) in bringing a charge (q) from a point at infinity (where the potential is considered to be zero) to a point P is given by the formula: \[ W = q \cdot V_P \] where \( V_P \) is the electric potential at point P. ### Step 2: Convert the given values into standard units. ...
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Knowledge Check

  • When a 2 mu C charge is carried from point A to point B, the amount of work done by the electric field is 50 mu J . What is the potential difference and which point is at a higher potential ?

    A
    `25 V,B`
    B
    `25 V,A`
    C
    `20 V,B`
    D
    both are at same potential.

  • A mass of 5 kg is brought from infinity (mass at rest) to a point A. When the mass reaches at point A it is moving with speed of 5ms^(-1) . If -6 J of work is done by a person to displace the mass, then potential at point A is

    A
    11.7 V
    B
    `-13.7 V`
    C
    `-23.7 V`
    D
    29.7 V

  • Two point charges are located at two of the vertices of a right triangle. If a third charge -2q is brought from infinity and placed at the third vertex, what will its electric potential energy be? Use the following values: a=0.15 m , b=0.45 m, and q=2.0 xx 10^(-5) C.

    A
    `-17 J`
    B
    `+8.5 J`
    C
    `-12 J`
    D
    `+14 J`

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