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State Gauss's law in electrostatics
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0
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8645
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September 6, 2016
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A charge q is placed at the centre of a cube of side l. What is the electric flux passing through each face of the cube?
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1
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1859
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September 6, 2016
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Two charges of magnitudes - 2Q and + Q are located at points (a, 0) and (4a, 0) respectively
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1
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4127
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September 6, 2016
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Define the term 'electric flux'. Write its S.I. unit
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0
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14883
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September 6, 2016
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What is the electric flux through a cube of side 1 cm which encloses an electric dipole?
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0
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6895
|
September 6, 2016
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How does the electric flux due to a point charge enclosed by a spherical Gaussian surface get affected when its radius is increased?
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0
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7327
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September 6, 2016
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Define electric dipole moment. Is it a scalar or a vector?
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1
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8126
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September 6, 2016
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A dipole is made up of two charges + q and - q separated by a distance 2a
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1
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4716
|
September 6, 2016
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Identify two pairs of perpendicular vectors in the expression
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1
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7094
|
September 6, 2016
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An electric dipole is placed in a uniform electric field
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1
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25643
|
September 6, 2016
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(a) A point charge (+ Q) is kept in the vicinity of an uncharged conducting plate. Sketch electric field lines between the charge and the plate
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1
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35122
|
September 6, 2016
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Two point charges + q and -2q are placed at the vertices 'B' and ‘C of an equilateral triangle ABC of side 'a' as given in the figure. Obtain the expression for
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1
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32213
|
September 6, 2016
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An electric dipole of dipole moment p is placed in a uniform electric field E
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1
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6038
|
September 6, 2016
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A charge is distributed uniformly over a ring of radius 'a'. Obtain an expression for the electric intensity E at a point on the axis of the ring. Hence show that for points at large distances from the ring, it behaves like a point charge
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0
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17662
|
September 6, 2016
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Plot a graph showing
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1
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647
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September 6, 2016
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Two small identical electrical dipoles AB and CD, each of dipole moment 'p' are kept at an angle of 120° as shown in the figure. What is the resultant dipole moment of this combination?
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1
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4264
|
September 6, 2016
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An electric dipole is held in a uniform electric field
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1
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3245
|
September 6, 2016
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Find the expression for electric field intensity in an axial position due to electric dipole
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0
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13595
|
September 6, 2016
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An electric dipole of length 4 cm, when placed with its axis making an angle of 60° with a uniform
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1
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21531
|
September 6, 2016
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An electric dipole is placed in a uniform electric field E with its dipole moment p parallel to the field. Find
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1
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9708
|
September 6, 2016
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Two point charges q1, and q2 are located at r1 and r2 respectively in an external electric field E. Obtain the expression for the total work done in assembling this configuration
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0
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8471
|
September 6, 2016
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A small metallic sphere carrying charge +Q is located at the centre of a spherical cavity in a large uncharged metallic spherical shell. Write the charges on the inner and outer surfaces of the shell. Write the expression for the electric field at point $
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1
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15278
|
September 6, 2016
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Why should electrostatic field be zero inside a conductor?
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0
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6833
|
September 6, 2016
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Two dipoles, made from charges ± q and ± Q respectively, have equal dipole moments. Give the (i) ratio between the 'separations' of these two pairs of charges, (ii) angle between the dipole axis of these two dipoles
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0
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4285
|
September 6, 2016
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Why do the electrostatic field lines not form closed loops?
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0
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3399
|
September 6, 2016
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Figure shows the field lines on a positive charge. Is the work done by the field in moving a small positive charge from Q to P, positive or negative? Give reason
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1
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7973
|
September 6, 2016
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What is the amount of work done in moving a point charge around a circular arc of radius r at the centre where another point charge is located?
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0
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15681
|
September 6, 2016
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Why do the electric field lines never cross each other?
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0
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1263
|
September 6, 2016
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Two equal balls having equal positive charge 'q' coulombs are suspended by two insulating strings of equal length. What would be the effect on the force when a plastic sheet is inserted between the two?
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0
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2400
|
September 6, 2016
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. Two point charges 'q1' and 'q2' are placed at a distance 'd' apart as shown in the figure. The electric field intensity is zero at a point 'P' on the line joining them as shown. Write two conclusions that you can draw from this
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1
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22822
|
September 6, 2016
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