Practice Parallel Plate Capacitor (11.3) - Electrostatics - ICSE 12 Physics

Practice: Parallel Plate Capacitor

Lesson 11.3Electrostatics

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8 questions

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6 sample questions

Question 1.
What is the formula for the capacitance of a parallel plate capacitor?
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Think about the area of the plates and their separation.
Question 2.
What effect does increasing the distance between the plates have on capacitance?
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Remember the relationship - is it direct or inverse?
3Question 3.
What is the formula for capacitance in a parallel plate capacitor?
- C = ε₀ A / d
- C = K ε₀ A / d
- Both of the above
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Think about how dielectrics change the capacitance.
4Question 4.
True or False: Increasing the area of the plates of a capacitor decreases its capacitance.
- True
- False
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Recall the direct relationship with area.
Question 5.
A parallel plate capacitor with plate area 1 m² and separation of 0.01 m has a dielectric of constant 5 inserted. Calculate its capacitance.
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Remember to apply the dielectric constant to the capacitance formula.
Question 6.
A capacitor has a capacitance of 10 µF when air is the dielectric. What would be its capacitance if a dielectric constant of 2 is used?
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Multiplied the original capacitance by the dielectric constant.

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