Are sheet of Aluminium foil of negligible thickness is placed between the plates of a capacitor of capacitance C?

The capacitance of the capacitor after a sheet of aluminum foil of negligible thickness is introduced between the plates remains unchanged. Thus, B is the correct option.

Are Thin aluminium sheet is placed between the plates of a parallel plate capacitor its capacitance will?

As shown in the figure, a very thin sheet of aluminum is placed in between the plates of the condenser. Since aluminium is a metal, therefore field inside this will be zero. Hence it would not affect the field in between the two plates, so capacity =qV=qEd remains unchanged.

What will be the new capacitance of a capacitor in which a metal foil of negligible thickness is introduced between the plates?

the capacitance of the capacitor will remain the same. Explanation: As aluminium is a metal and its thickness is negligible, the potential difference between the plates remains unchanged. Thus the capacitance will remain unchanged.

What happens to the capacitance value when the gap between the parallel plates of the capacitor is reduced?

As the diaphragm vibrates, the capacitance between it and a fixed plate changes, and the voltage changes with it. The Voltage definitely increases. Since you decrease C by increasing the gap but Q stays the same, U will increase.

When the potential difference across a capacitor is reduced by 120v?

A capacitor of unknown capacitance is connected across a battery of V volts . The charge stored in it is 360μC. When potential across the capacitor is reduced by 120 V, the charge stored in it becomes 120μC.

Are thin metal sheet is placed in the middle of a parallel plate capacitor What will be the effect on the capacitance?

When a thin metal sheet will be placed in the middle of a parallel plate capacitor then the capacitance will increase. Placing of the sheet in between the plate capacitor will increase the capacitance by the factor that is equal to the dielectric constant of the given metal sheet.

What capacitance of capacitor depends on two things?

The capacitance of a capacitor is affected by the area of the plates, the distance between the plates, and the ability of the dielectric to support electrostatic forces.

What happens to the potential difference between the plates of a capacitor as the thickness of the dielectric slab increases?

Explanation: When a dielectric is introduced between the plates of a capacitor, its potential difference decreases. Hence as the thickness of the dielectric slab increases, a larger value is subtracted from the original potential difference.

What is the effect on the capacitance of a capacitor for increasing the thickness of dielectric medium in between two parallel plates of a capacitor?

The larger the dielectric constant, the more charge can be stored. Completely filling the space between capacitor plates with a dielectric, increases the capacitance by a factor of the dielectric constant: C = KCo, where Co is the capacitance with no slab between the plates.

How is the capacitance of a parallel plate capacitor decreased?

How can we decrease the capacitance of a parallel-plate capacitor? Explanation: The capacitance is inversely proportional to the distance between the plates. Hence, the capacitance of a capacitor decreases when the plates are farther apart.