1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A capacitor of 2 $$\mu $$F is charged as shown in the diagram. When the switch S is turned to position 2, the percentage of its stored energy dissipated is
NEET 2016 Phase 1 Physics - Capacitor Question 31 English
A
75%
B
80%
C
0%
D
20%
2
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference $$V$$ is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is
A
$${{C{V^2}} \over d}$$
B
$${{{C^2}{V^2}} \over {2{d^2}}}$$
C
$${{{C^2}{V^2}} \over {2d}}$$
D
$${{C{V^2}} \over {2d}}$$
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dieletric constant K, which can just fill the air gap of the capacitor, is now inserted in it . Which of the following is incorrect ?
A
The change in energy stored is $${1 \over 2}C{V^2}\left( {{1 \over K} - 1} \right)$$
B
The charge on the capacitor is not conserved.
C
The potential difference between the plates decreases K times.
D
The energy stored in the capaciotor decreases K times.
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Two thin dielectric slabs of dielectric constants K1 and K2(K1 < K2) are inserted between plates of a parallel plate capacitor, as shown in the figure. The variation of electric field E between the plates with distance d as measured from plate P is correctly shown by
AIPMT 2014 Physics - Capacitor Question 28 English
A
AIPMT 2014 Physics - Capacitor Question 28 English Option 1
B
AIPMT 2014 Physics - Capacitor Question 28 English Option 2
C
AIPMT 2014 Physics - Capacitor Question 28 English Option 3
D
AIPMT 2014 Physics - Capacitor Question 28 English Option 4
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