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# Parallel Plate Capacitors with Dielectric Slab Video Lecture - Physics Class 12 - NEET

## Physics Class 12

154 videos|444 docs|185 tests

## FAQs on Parallel Plate Capacitors with Dielectric Slab Video Lecture - Physics Class 12 - NEET

 1. What is a parallel plate capacitor?
Ans. A parallel plate capacitor is a type of capacitor that consists of two parallel conducting plates separated by a small distance. It is used to store electrical energy by creating an electric field between the plates.
 2. What is the purpose of a dielectric slab in a parallel plate capacitor?
Ans. A dielectric slab is used in a parallel plate capacitor to increase its capacitance. It is an insulating material that is placed between the plates, reducing the electric field and allowing more charge to be stored on the plates.
 3. How does the presence of a dielectric slab affect the capacitance of a parallel plate capacitor?
Ans. The presence of a dielectric slab increases the capacitance of a parallel plate capacitor. This is because the dielectric material reduces the electric field between the plates, allowing more charge to be stored on the plates for a given potential difference.
 4. What are some common dielectric materials used in parallel plate capacitors?
Ans. Some common dielectric materials used in parallel plate capacitors include air, paper, mica, ceramic, and various types of plastic such as polyethylene and polystyrene. The choice of dielectric material depends on factors such as dielectric constant, breakdown voltage, and desired capacitance.
 5. How does the dielectric constant of a material affect the capacitance of a parallel plate capacitor?
Ans. The dielectric constant of a material is a measure of its ability to store electrical energy in an electric field. A higher dielectric constant means that the material can store more charge for a given potential difference, resulting in a higher capacitance for the parallel plate capacitor.

## Physics Class 12

154 videos|444 docs|185 tests

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