- 1(current)
Q. No.Two charges \(\pm10~\mu\text{C}\) are placed \(5.0\) mm apart. The electric field at a point \(P\) on the axis of the dipole \(15\) cm away from its centre \(O\) on the side of the positive charge, as shown in the figure is:
| 1. | \(2.7\times10^5~\text{NC}^{-1}\) |
2. | \(4.13\times10^6~\text{NC}^{-1}\) |
| 3. | \(3.86\times10^6~\text{NC}^{-1}\) | 4. | \(1.33\times10^5~\text{NC}^{-1}\) |
Subtopic: Â Electric Dipole |
 57%
From NCERT
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Two point charges \({-q}\) and \({+q}\) are placed at a distance of \({L},\) as shown in the figure.
The magnitude of electric field intensity at a distance \({R}~(R \gg L )\) varies as:
The magnitude of electric field intensity at a distance \({R}~(R \gg L )\) varies as:
| 1. | \(\dfrac{1}{{R}^{6}}\) | 2. | \(\dfrac{1}{{R}^{2}}\) |
| 3. | \(\dfrac{1}{{R}^{3}}\) | 4. | \(\dfrac{1}{{R}^{4}}\) |
Subtopic: Â Electric Dipole |
 71%
From NCERT
NEET - 2022
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An electric dipole is placed in a uniform electric field. The net electric force on the dipole:
| 1. | is always zero. |
| 2. | depends on the orientation of the dipole. |
| 3. | can never be zero. |
| 4. | depends on the strength of the dipole. |
Subtopic: Â Electric Dipole |
 73%
From NCERT
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An electric dipole is placed at an angle of \(30^\circ\) with an electric field intensity \(2\times10^5~ \text{N/C}\). It experiences a torque equal to \(4~\text{N-m}\). The charge on the dipole, if the dipole length is \(2~ \text{cm}\), is:
| 1. | \(8~\text{mC}\) | 2. | \(2~\text{mC}\) |
| 3. | \(5~\text{mC}\) | 4. | \(7~\mu \text{C}\) |
Subtopic: Â Electric Dipole |
 87%
From NCERT
NEET - 2016
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Equal and opposite charges are placed at the two vertices of an equilateral triangle, giving a dipole moment \(p.\) A small dipole \(p'\) is placed at the third vertex, parallel to the previous dipole. If the electric fields due to both dipoles \(p,~p',\) at the mid-point of the dipole \(p,\) are equal, then \(\frac{p'}{p}\) equals:
| 1. | \(3\sqrt3\) | 2. | \(\frac{3\sqrt3}{2}\) |
| 3. | \(\sqrt3\) | 4. | \(\frac{\sqrt3}{2}\) |
Subtopic: Â Electric Dipole |
From NCERT
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