- 1(current)
Q. No.The angle between equipotential surface and electric lines of force is:
1. zero
2. \(180^{\circ}\)
3. \(90^{\circ}\)
4. \(45^{\circ}\)
1. zero
2. \(180^{\circ}\)
3. \(90^{\circ}\)
4. \(45^{\circ}\)
Subtopic: Â Equipotential Surfaces |
 86%
From NCERT
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On rotating a point charge having a charge \(q\) around a charge \(Q\) in a circle of radius \(r,\) the work done will be:
| 1. | \(q \times2 \pi r\) | 2. | \(q \times2 \pi Q \over r\) |
| 3. | zero | 4. | \(Q \over 2\varepsilon_0r\) |
Subtopic: Â Equipotential Surfaces |
 89%
From NCERT
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Equipotential at a great distance from a collection of charges whose total sum is not zero are approximately:
| 1. | spheres | 2. | planes |
| 3. | paraboloids | 4. | ellipsoids |
Subtopic: Â Equipotential Surfaces |
 58%
From NCERT
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The angle between the electric lines of force and the equipotential surface is:
1. \(180^\circ\)
2. \(0^\circ\)
3. \(45^\circ\)
4. \(90^\circ\)
1. \(180^\circ\)
2. \(0^\circ\)
3. \(45^\circ\)
4. \(90^\circ\)
Subtopic: Â Equipotential Surfaces |
 82%
From NCERT
NEET - 2022
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In a certain charge distribution, all points having zero potential can be joined by a circle \(S.\) The points inside \(S\) have positive potential, and points outside \(S\) have a negative potential. A positive charge, which is free to move, is placed inside \(S.\) What is the correct statement about \(S\):
| 1. | It will remain in equilibrium |
| 2. | It can move inside \(S,\) but it cannot cross \(S\) |
| 3. | It must cross \(S\) at some time |
| 4. | It may move, but will ultimately return to its starting point |
Subtopic: Â Equipotential Surfaces |
From NCERT
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The diagrams below show regions of equipotentials.
| 1. | the maximum work is required to move \(q\) in figure(iii). |
| 2. | in all four cases, the work done is the same. |
| 3. | the minimum work is required to move \(q\) in the figure(i). |
| 4. | the maximum work is required to move \(q\) in figure(ii). |
Subtopic: Â Equipotential Surfaces |
 91%
From NCERT
NEET - 2017
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The electric potential in a certain region of space is given by \(V = -8x^2+4x\), where \(V\) is in volt and \(x\) is in metre. In this region, the equipotential surface is:
| 1. | plane parallel to \(yz\) plane |
| 2. | plane parallel to the \(x\text{-}\)axis |
| 3. | concentric circle centered at the origin |
| 4. | coaxial cylinder with axis parallel to the \(y\text-\)axis |
Subtopic: Â Equipotential Surfaces |
 64%
From NCERT
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A cube of a metal is given a positive charge \(Q.\) For the above system, which of the following statements is true?
| 1. | The electric potential at the surface of the cube is zero. |
| 2. | The electric potential within the cube is zero. |
| 3. | The electric field is normal to the surface of the cube. |
| 4. | The electric field varies within the cube. |
Subtopic: Â Equipotential Surfaces |
 77%
From NCERT
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Some equipotential surfaces are shown in the figure. The electric field at points \(A\), \(B\) and \(C\) are respectively:
| 1. | \(1~\text{V/cm}, \frac{1}{2} ~\text{V/cm}, 2~\text{V/cm} \text { (all along +ve X-axis) }\) |
| 2. | \(1~\text{V/cm}, \frac{1}{2} ~\text{V/cm}, 2 ~\text{V/cm} \text { (all along -ve X-axis) }\) |
| 3. | \(\frac{1}{2} ~\text{V/cm}, 1~\text{V/cm}, 2 ~\text{V/cm} \text { (all along +ve X-axis) }\) |
| 4. | \(\frac{1}{2}~\text{V/cm}, 1~\text{V/cm}, 2 ~\text{V/cm} \text { (all along -ve X-axis) }\) |
Subtopic: Â Equipotential Surfaces |
 71%
From NCERT
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