Q. What is the unit for relative permittivity?

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Q. Which, among the following, will be unity in free space?

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Q. Which, among the following, do not have any unit?

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Q. Which is the correct expression for capacitance of a multi plate capacitor?

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Q. What happens to the capacitance of a multi plate capacitor when the area of cross section of the plate decreases?

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Q. What happens to the capacitance of a multi plate capacitor when the distance of separation between the plate increases?

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Q. What happens to the capacitance of a multi plate capacitor when the number of plates increases?

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Q. Find the capacitance of a multi plate capacitor whose actual permittivity= 5F/m, n=3, A=4m²and d=2m.

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Q. Find the capacitance of a multi plate capacitor whose relative permittivity=5, n=3, A=4m² and d=2m.

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Q. Find the number of plates in the multi plate capacitor having C=20F absolute permittivity=5F/m, A=4m² and d=2m.

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Q. Calculate the distance between the plates of the capacitor having C=20F, actual permittivity = 5F/m n=3 and A=4m².

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Q. Calculate the area of cross section of the multi plate capacitor having C=20F, actual permittivity=5F/m n=3 and d=2m.

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Q. Calculate the number of plates in the multi plate capacitor having C=1.77*10¯¹⁰F relative permittivity=5, A=4m² and d=2m.

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Q. Potential drop in a dielectric is equal to _______

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Q. The electric field strength is 10N/C and the thickness of the dielectric is 3m. Calculate the potential drop in the dielectric.

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Q. The electric fields of dielectrics having the same cross sectional area in series are related to their relative permittivities in which way?

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Q. What happens to the capacitance when a dielectric is introduced between its plates?

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Q. Calculate the relative permittivity of the second dielectric if the relative permittivity of the first is 4. The electric field strength of the first dielectric is 8V/m and that of the second is 2V/m.

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Q. What happens to the potential drop between the two plates of a capacitor when a dielectric is introduced between the plates?

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Q. If the potential difference across the plates of a capacitor is 10V and a dielectric having thickness 2m is introduced between the plates, calculate the potential difference after introducing the dielectric. The electric field strength is 2V/m.

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