The figure shows a variable “air gap” capacitor of the type used in manually tuned radios. Alternate plates are connected together; one group of plates is fixed in position, and the other group is capable of rotation. Consider a capacitor of n = 8 plates of alternating polarity, each plate having area A = 1.96 cm2 and separated from adjacent plates by distance d = 4.60 mm. What is the maximum capacitance of the device?
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The figure shows a variable “air gap” capacitor of the type used
in manually tuned radios....
Chapter 25, Problem 020 The figure shows a variable "air gap capactor of the type used...
Chapter 25, Problem 020 The figure shows a variable "air gap capactor of the type used in manually tuned radios. Akemate plates are connected together one group of plates is fixed in position, and the other group ia anable, or rotatin, Cowder a oapechor of n _ B plates of alternating polarity, each plate having area A-1,79 oma and separated from adjacent plates by a ce d-3.40mrn. w︺-the Number the tolerance is +/2%
A parallel-plate capacitor with plate area 4.60 cm2 and air-gap separation 0.78 mm is connected to...
A parallel-plate capacitor
with plate area 4.60 cm2 and air-gap separation 0.78 mm is
connected to a 12.00 V battery, and fully charged. The battery is
then disconnected. (a) What is the charge on the capacitor? (b) The
plates are now pulled to a separation of 0.98 mm. What is the
charge on the capacitor now? (c) What is the potential difference
across the plates now? (d) How much work was required to pull the
plates to their new separation?...
An air gap capacitor having a capacitance of 2.00μF is connected to a battery; it acquires...
An air gap capacitor having a capacitance of 2.00μF is connected to a battery; it acquires a charge of 6.00μC. The battery is then disconnected. (Assume that, to a good approximation, the formulas for an infinite parallel plate capacitor apply.) A neutral insulating sheet with a dielectric constant of 2.5 is inserted between the plates of the charged capacitor, completely filling the gap. What is the capacitance of the capacitor now that the insulator has been added?
An air-filled parallel-plate capacitor has plates of area 2.50 cm2 separated by 3.00 mm. The capacitor...
An air-filled parallel-plate capacitor has plates of area 2.50 cm2 separated by 3.00 mm. The capacitor is connected to a 21.0-V battery. (a) Find the value of its capacitance. (b) What is the charge on the capacitor? (c) What is the magnitude of the uniform electric field between the plates?
85. A parallel-plate capacitor with plate area 3.0 cm2 and air- gap separation 0.50 mm is...
85. A parallel-plate capacitor with plate area 3.0 cm2 and air- gap separation 0.50 mm is connected to a 12-V battery, and fully charged. The battery is then disconnected. (a) What is the charge on the capacitor? (b) The plates are now pulled to a separation of 0.75 mm. What is the charge on the capacitor now? (c) What is the potential difference between the plates now? (d) How much work was required to pull the plates to their new...
An air-filled parallel-plate capacitor has plates of area 2.70 cm2 separated by 0.50 mm. The capacitor...
An air-filled parallel-plate capacitor has plates of area 2.70 cm2 separated by 0.50 mm. The capacitor is connected to a 6.0-V battery. (a) Find the value of its capacitance. ________ pF (b) What is the charge on the capacitor? ________ pC (c) What is the magnitude of the uniform electric field between the plates? ________ V/m
An air-filled parallel-plate capacitor has plates of area 2.90 cm2 separated by 2.60 mm. The capacitor...
An air-filled parallel-plate capacitor has plates of area 2.90 cm2 separated by 2.60 mm. The capacitor is connected to a(n) 17.0 V battery. (a) Find the value of its capacitance. _____pF (b) What is the charge on the capacitor? _____pC (c) What is the magnitude of the uniform electric field between the plates? ______N/C
1. Consider an air-filled parallel plate capacitor with plate area A = 37.4 cm2 and gap...
1. Consider an air-filled parallel plate capacitor with plate area A = 37.4 cm2 and gap width d = 0.7 mm. A. What is its capacitance? B. The capacitor was connected to a 40-V battery, and disconnected after charging. What is the charge Q drawn from the battery? The gap of the capacitor described in Problem #1 is now filled by the material with the dielectric constant of 4.2. C. What is its capacitance? D. The capacitor was connected to...
1. Consider an air-filled parallel plate capacitor with plate area A = 37.4 cm2 and gap...
1. Consider an air-filled parallel plate capacitor with plate area A = 37.4 cm2 and gap width d = 0.7 mm. A. What is its capacitance? B. The capacitor was connected to a 40-V battery, and disconnected after charging. What is the charge Q drawn from the battery? 2. The gap of the capacitor described in Problem #1 is now filled by the material with the dielectric constant of 4.2. A. What is its capacitance? B. The capacitor was connected...
Capacitor calculation a) Calculate the capacitance of a parallel-plate capacitor whose plates are made of two...
Capacitor calculation a) Calculate the capacitance of a parallel-plate capacitor whose plates are made of two different sizes. One plate has a radius of 10 cm and the other plate has 12 cm and is separated by 0.75 mm air gap. b) What is the charge on each plate if a 12-V battery is connected across the two plates? c) What is the electric field between the plates? d) Estimate the area of the plates needed to achieve a capacitance...
Chapter 25, Problem 020 The figure shows a variable "air gap capactor of the type used in manually tuned radios. Akemate plates are connected together one group of plates is fixed in position, and the other group ia anable, or rotatin, Cowder a oapechor of n _ B plates of alternating polarity, each plate having area A-1,79 oma and separated from adjacent plates by a ce d-3.40mrn. w︺-the Number the tolerance is +/2%
A parallel-plate capacitor
with plate area 4.60 cm2 and air-gap separation 0.78 mm is
connected to a 12.00 V battery, and fully charged. The battery is
then disconnected. (a) What is the charge on the capacitor? (b) The
plates are now pulled to a separation of 0.98 mm. What is the
charge on the capacitor now? (c) What is the potential difference
across the plates now? (d) How much work was required to pull the
plates to their new separation?...
85. A parallel-plate capacitor with plate area 3.0 cm2 and air- gap separation 0.50 mm is connected to a 12-V battery, and fully charged. The battery is then disconnected. (a) What is the charge on the capacitor? (b) The plates are now pulled to a separation of 0.75 mm. What is the charge on the capacitor now? (c) What is the potential difference between the plates now? (d) How much work was required to pull the plates to their new...
Capacitor calculation a) Calculate the capacitance of a parallel-plate capacitor whose plates are made of two different sizes. One plate has a radius of 10 cm and the other plate has 12 cm and is separated by 0.75 mm air gap. b) What is the charge on each plate if a 12-V battery is connected across the two plates? c) What is the electric field between the plates? d) Estimate the area of the plates needed to achieve a capacitance...
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