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Q. No.Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | The potential (V)(V) at any axial point, at 2 m distance (r) from the centre of the dipole of dipole moment vector →P of magnitude, 4×10−6 C m, is ±9×103 V. (Take 14πε0=9×109 SI units) |
| Reason (R): | V=±2P4πε0r2, where r is the distance of any axial point situated at 2 m from the centre of the dipole. |
| 1. | Both (A) and (R) are True and (R) is not the correct explanation of (A). |
| 2. | (A) is True but (R) is False. |
| 3. | (A) is False but (R) is True. |
| 4. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
Subtopic: Electric Potential |
58%
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NEET - 2024
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In the following circuit, the equivalent capacitance between terminal A and terminal B is:
1. 1 μF
2. 0.5 μF
3. 4 μF
4. 2 μF
1. 1 μF
2. 0.5 μF
3. 4 μF
4. 2 μF
Subtopic: Combination of Capacitors |
71%
From NCERT
NEET - 2024
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A thin spherical shell is charged by some source. The potential difference between the two points C and P (in V) shown in the figure is:
( Take 14πϵ0=9×109 SI units)
1. 1×105
2. 0.5×105
3. zero
4. 3×105
( Take 14πϵ0=9×109 SI units)
1. 1×105
2. 0.5×105
3. zero
4. 3×105
Subtopic: Electric Potential |
70%
From NCERT
NEET - 2024
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If the plates of a parallel plate capacitor connected to a battery are moved closer to each other, then:
Choose the most appropriate answer from the options given below:
| (A) | The charge stored in it increases. |
| (B) | The energy stored in it decreases. |
| (C) | Its capacitance increases. |
| (D) | The ratio of charge to its potential remains the same. |
| (E) | The product of charge and voltage increases. |
| 1. | (A), (C) and (E) only |
| 2. | (B), (D) and (E) only |
| 3. | (A), (B) and (C) only |
| 4. | (A), (B) and (E) only |
Subtopic: Energy stored in Capacitor |
61%
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NEET - 2024
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A dielectric slab of dielectric constant 3 having the same area of cross-section as that of a parallel plate capacitor but of thickness 34th of the separation of the plates is inserted into the capacitor. The ratio of potential difference across the plates without dielectric to that with dielectric is:
1. 1:2
2. 2:3
3. 3:2
4. 2:1
1. 1:2
2. 2:3
3. 3:2
4. 2:1
Subtopic: Dielectrics in Capacitors |
57%
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NEET - 2024
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A 12 pF capacitor is connected to a 50 V battery. The electrostatic energy stored in the capacitor in nJ is:
| 1. | 15 | 2. | 7.5 |
| 3. | 0.3 | 4. | 150 |
Subtopic: Energy stored in Capacitor |
72%
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NEET - 2024
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The capacitance of a capacitor with charge q and a potential difference V depends on:
| 1. | both q and V |
| 2. | the geometry of the capacitor |
| 3. | q only |
| 4. | V only |
Subtopic: Capacitance |
75%
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NEET - 2024
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The value of the electric potential at a distance of 9 cm from the point charge 4×10−7 C is:
[Given14πε0=9×109 N m2 C−2]
[Given14πε0=9×109 N m2 C−2]
| 1. | 4×102 V | 2. | 44.4 V |
| 3. | 4.4×105 V | 4. | 4×104 V |
Subtopic: Electric Potential |
79%
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NEET - 2024
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The equivalent capacitance of the system shown in the following circuit is:
| 1. | 9 μF | 2. | 2 μF |
| 3. | 3 μF | 4. | 6 μF |
Subtopic: Combination of Capacitors |
82%
From NCERT
NEET - 2023
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An electric dipole is placed as shown in the figure.
The electric potential (in 102 V) at the point P due to the dipole is:
(ε0= permittivity of free space and 14πε0=k)
The electric potential (in 102 V) at the point P due to the dipole is:
(ε0= permittivity of free space and 14πε0=k)
| 1. | (83)qk | 2. | (38)qk |
| 3. | (58)qk | 4. | (85)qk |
Subtopic: Energy of Dipole in an External Field |
64%
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NEET - 2023
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