AIPMT 2012 Mains | Capacitor Question 18 | Physics

AIPMT 2012 Mains

MCQ (Single Correct Answer)

-1

A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is

$${1 \over 2}{\varepsilon _0}{E^2}$$

$${{{E^2}Ad} \over {{\varepsilon _0}}}$$

$${1 \over 2}{\varepsilon _0}{E^2}Ad$$

$${\varepsilon _0}EAd$$

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is

$${1 \over 2}{\varepsilon _0}{E^2}$$

$${{{E^2}Ad} \over {{\varepsilon _0}}}$$

$${1 \over 2}{\varepsilon _0}{E^2}Ad$$

$${\varepsilon _0}EAd$$

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

Two parallel metal plates having charges +Q and $$-$$Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will

become zero

increase

decrease

remain same

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

A series combination of n₁ capacitors, each of value C₁, is charged by a source of potential difference 4V. When another parallel combination of n₂ capacitors, each of value C₂, is charged by a source of potential difference V, it has the same (total) energy stored in it. as the first combination has. The value of C₂. in terms of C₁, is then

$${{2{C_1}} \over {{n_1}{n_2}}}$$

$$16{{{n_2}} \over {{n_1}}}{C_1}$$

$$2{{{n_2}} \over {{n_1}}}{C_1}$$

$${{16{C_1}} \over {{n_1}{n_2}}}$$

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