Electric Dipole Absorb Before You Solve MCQs Electric Charges and Fields Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Q1:

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: Electric Dipole |

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Q2:

Two point charges

- q

${-q}$ and

+ q

${+q}$ are placed at a distance of

L,

${L},$ as shown in the figure.

The magnitude of electric field intensity at a distance

R (R ≫ L)

${R}~(R \gg L )$ varies as:

1.	$\dfrac{1}{{R}^{6}}$	2.	$\dfrac{1}{{R}^{2}}$
3.	$\dfrac{1}{{R}^{3}}$	4.	$\dfrac{1}{{R}^{4}}$

Subtopic: Electric Dipole |

72%

From NCERT

NEET - 2022

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Q3:

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: Electric Dipole |

73%

From NCERT

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Q4:

An electric dipole is placed at an angle of

30^{\circ}

$30^\circ$ with an electric field intensity

2 \times 10^{5} N/C

$2\times10^5~ \text{N/C}$ . It experiences a torque equal to

4 N-m

$4~\text{N-m}$ . The charge on the dipole, if the dipole length is

2 cm

$2~ \text{cm}$ , is:

1.	$8~\text{mC}$	2.	$2~\text{mC}$
3.	$5~\text{mC}$	4.	$7~\mu \text{C}$

Subtopic: Electric Dipole |

88%

From NCERT

NEET - 2016

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Q5:

Equal and opposite charges are placed at the two vertices of an equilateral triangle, giving a dipole moment

p .

$p.$ A small dipole

p^{'}

$p'$ is placed at the third vertex, parallel to the previous dipole. If the electric fields due to both dipoles

p, p^{'},

$p,~p',$ at the mid-point of the dipole

p,

$p,$ are equal, then

\frac{p^{'}}{p}

$\dfrac{p'}{p}$ equals:

1.	$3\sqrt3$	2.	$\dfrac{3\sqrt3}{2}$
3.	$\sqrt3$	4.	$\dfrac{\sqrt3}{2}$

Subtopic: Electric Dipole |

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