Faraday 8
A loop of wire sits in a uniform, constant
B field. Suddenly, the loop is stretched
into a larger area. During the stretching
of the loop, the induced current in the
loop is
A: CW
B: CCW
C: No current
B(out)
Faraday 9
A bar magnet is positioned below a loop
of wire. The magnet is pulled down,
away from the loop.
B
i
As viewed from above,
is the induced current in the loop
A)  clockwise
B) CCW
C) zero?
Faraday 12
Two loop of wires (A and B) are placed near
each other. A large increasing current in A is
suddenly turned on. This causes an induced
current in loop B which causes…
B
A: the two loops to repel
B: the two loops attract
C: depends on whether the current in loop A is
CW or CCW
D: No net force.
A
Faraday 13
A conducting loop is moving from left to right into a
region of steady, constant magnetic field. What
current is induced in the loop as the loop is
entering, partway in (but not totally in) the field
region?
X
X X
X X X X
X X X X B
X X X X
A: CW
B: CCW
X
C: None
Faraday 14
A current-carrying wire is pulled away from
a conducting loop. As the wire moves, is
there a current induced around the loop?
A: Yes, CW
B: Yes, CCW
C: No
I
v
Faraday 22
There are two loops of wire. The red loop has
an increasing current. What is the direction of
the force on right side of the blue wire?
F
X
A: è
B: ç
C: é
D: ê
E: No net force.
Faraday 23
There are two loops of wire. The red loop has an
increasing current. What is the direction of the force on
the left side of the blue wire?
X
F
A: è
B: ç
C: é
D: ê
E: No net force