GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the most common capacitor which involves two separate conductor plates separated from one another by a dielectric?
A
Parallel-plate capacitor
B
Non-polarized capacitor
C
Series-plate capacitor
D
Electrolytic capacitor
Explanation: 

Detailed explanation-1: -The parallel-plate capacitor is one that includes two conductor plates, each connected to wires, separated from one another by a thin space. One of the most commonly used capacitors in industry and in the academic setting is the parallel-plate capacitor.

Detailed explanation-2: -A parallel plate capacitor with a dielectric between its plates has a capacitance given by C=0Ad, where is the dielectric constant of the material. The maximum electric field strength above which an insulating material begins to break down and conduct is called dielectric strength.

Detailed explanation-3: -A common example of a dielectric is the electrically insulating material between the metallic plates of a capacitor. The polarisation of the dielectric by the applied electric field increases the capacitor’s surface charge for the given electric field strength.

Detailed explanation-4: -Dielectric Material – the type of material which separates the two plates called the “dielectric”, the higher the permittivity of the dielectric the greater the capacitance.

Detailed explanation-5: -Ceramics. Plastic films. Oxide layer on metal (Aluminum, Tantalum, Niobium) Natural materials like mica, glass, paper, air, SF6, vacuum. 26-Jul-2019

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