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Draw E-r and V-r graphs due to two point...

Draw `E-r` and `V-r` graphs due to two point charges `+ q` and `-2q` kept at some along the line joining these two charges.

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To draw the `E-r` (Electric Field vs. Distance) and `V-r` (Electric Potential vs. Distance) graphs due to two point charges `+q` and `-2q`, we will follow these steps: ### Step 1: Understand the Setup We have two point charges: - Charge `+q` located at point A. - Charge `-2q` located at point B. We will analyze the electric field and potential along the line joining these two charges. ...
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Knowledge Check

  • Two identical charges +Q are kept fixed some distance apart.A small particles P with charge q is placed midway between them . If P is given a small displacement Delta ,it will undergo simple harmonic motion if (i) q is positive and Delta is along the line joining the charges (ii) q is positive and Delta is perpendicular to the line joining the charges (iii) q is negative and Delta is perpendicular to the line joining the charges (iv) q is positive and Delta is along the line joining the charges

    A
    `(i) ,(ii)`
    B
    `(i),(iii)`
    C
    `(ii),(iii)`
    D
    `(i),(iv)`

  • Two charge +q and -q are kept apart.then at any point on the right beisector of line joining the two charges

    A
    the electric fields strenght is zero
    B
    the elctric potential is zero
    C
    both electric potential and electric field strength are zero
    D
    both electric potential and electric field strength are non zero

  • Two point charges +9e and +e are kept at a distance 'a' from each other. A third charge is placed at a distance 'x' from +9e on the line joining the above two charges. For the third charge to be in equilibrium 'x' is

    A
    `3a//4`
    B
    `3a//2`
    C
    `a//2`
    D
    `a//4`

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