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 28 English
A
75%
B
80%
C
0%
D
20%
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Two identical charged spheres suspended from a common point by two massless strings of lengths $$l$$, are initially at a distance d(d < < $$l$$) apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity v. Then v varies as a function of the distance x between the spheres, as
A
v $$ \propto $$ x$$-$$1/2
B
v $$ \propto $$ x$$-$$1
C
v $$ \propto $$ x1/2
D
v $$ \propto $$ x
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of emf's is
A
3 : 4
B
3 : 2
C
5 : 1
D
5 : 4
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
The charge flowing through a resistance R varies with time t is Q = at $$-$$ bt2, where $$a$$ and $$b$$ are positive constants. The total heat produced in R is
A
$${{{a^3}R} \over {2b}}$$
B
$${{{a^3}R} \over {b}}$$
C
$${{{a^3}R} \over {6b}}$$
D
$${{{a^3}R} \over {3b}}$$
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