The equivalent capacitance of the combination shown in the figure is:
1. C/2
2. 3C/2
3. 3C
4. 2C
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA parallel plate capacitor has a uniform electric field \(\vec{E}\) in the space between the plates. If the distance between the plates is \(d\) and the area of each plate is \(A\) the energy stored in the capacitor is:
\(\left ( \epsilon_{0} = \text{permittivity of free space} \right )\)
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo charged spherical conductors of radii R1 and R2 are connected by a wire. The ratio of surface charge densities of spheres \(\left ( \frac{\sigma _{1}}{\sigma _{2}}\right )\) is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwenty seven drops of same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop.
1. 1520 V
2. 1980 V
3. 660 V
4. 1320 V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn a certain region of space with volume 0.2 m3, the electric potential is found to be 5 V throughout. The magnitude of electric field in this region is:
1. 0.5 N/C
2. 1 N/C
3. 5 N/C
4. zero
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA short electric dipole has a dipole moment of . The electric potential due to the dipole at a point at a distance of 0.6 m from the centre of the dipole situated on a line making an angle of with the dipole axis is:
1. 200 V
2. 400 V
3. zero
4. 50 V
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe capacitance of a parallel plate capacitor with air as medium is . With the introduction of a dielectric medium, the capacitance becomes 30 . The permittivity of the medium is: (
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe variation of electrostatic potential with radial distance r from the centre of a positively charged metallic thin shell of radius R is given by the graph:
1. | 2. | ||
3. | 4. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA parallel plate capacitor with cross-sectional area A and separation d has air between the plates. An insulating slab of the same area but the thickness of d/2 is inserted between the plates as shown in the figure having a dielectric constant, K=4. The ratio of new capacitance to its original capacitance will be:
1. 2: 1
2. 8: 5
3. 6: 5
4. 4: 1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology