AIEEE Exam

the switch S is initially
open, and the capacitor C is charged with the
polarity indicated. The switch is then closed, and
the capacitor begins discharging through the
resistor. Which of the following is true of the
current that is subsequently induced in the circular
wire loop near the long, straight wire AB ?
(A) It is counterclockwise and increases with time
(B) It is counterclockwise and decreases with time
(C) It is clockwise and increases with time
(D) It is clockwise and decreases with time

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AIEEE Other Question

Two concentric metal spheres X and Y
X carries a positive charge, and Y
is connected to ground. True statements include
which of the following ?
I. The electric field inside X is zero
II. The electric field outside Y is zero
III. The charge density on both spheres is the same
(A) I only
(B) III only
(C) I and II only
(D) II and III only
A bead of mass 'm' is attached to one end of a
spring of natural length R and spring constant
k =
R
( 3 +1)mg . The other end of the spring is
fixed at point A on a smooth vertical ring of
radius R as shown. The normal reaction at B just
after it is released to move is