GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is zero midway between the plates.
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It is constant between the plates except near the edges.
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It is a maximum near the positively charged plate.
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It is a maximum near the negatively charged plate.
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Detailed explanation-1: -It is constant between the plate except near the edges.
Detailed explanation-2: -The strength of electric field between two parallel plates E=/0, when the dielectric medium is there between two plates then E=/.
Detailed explanation-3: -It’s calculated as a charge per square metre of surface area. Here we can see that the electric field is not depending upon the distances between the plates, whereas we can say from the above statement and formula that it is nothing but constant. Hence the correct option is Option (D).
Detailed explanation-4: -In a simple parallel-plate capacitor, a voltage applied between two conductive plates creates a uniform electric field between those plates. The electric field strength in a capacitor is directly proportional to the voltage applied and inversely proportional to the distance between the plates.
Detailed explanation-5: -Now, electric field between two opposite charged plane sheets of charge density will be given by: E=2−2(−)=