Question

A fixed 16.9-cm diameter wire coil is perpendicular to a magnetic field 0.44 TT pointing up. In 0.28 s, the field is changed to 0.30 TT pointing down.

What is the average induced emf in the coil?

Answer #1

A fixed 11.8-cm-diameter wire coil is perpendicular to a
magnetic field 0.44 T pointing up. In 0.22 s, the field is changed
to 0.25 T pointing down.
What is the average induced emf in the coil?
Express your answer to two significant figures and include the
appropriate units.

A fixed 12.1-cm-diameter wire coil is perpendicular to a
magnetic field 0.71 T pointing up. In 0.14 s , the field is changed
to 0.15 T pointing down.
What is the average induced emf in the coil?

A fixed 13.6-cm diameter wire coil is perpendicular to a
magnetic field 0.4 T
pointing up. In 0.30s, the field is changed to 0.24T pointing
down.
What is the average induced emf in the coil?

A fixed 15.6-cm-diameter wire coil is perpendicular to a
magnetic field 0.52 T pointing up. In 0.24 s, the field is changed
to 0.31 T pointing down. What is the average induced emf in the
coil? Express your answer to two significant figures and include
the appropriate units.

A fixed 11.8-cm
c
m
-diameter wire coil is perpendicular to a magnetic field 0.52
T
T
pointing up. In 0.25 s
s
, the field is changed to 0.24 T
T
pointing down.
What is the average induced emf in the coil?
Express your answer to two significant figures and include the
appropriate units.

A 13.4 cm -diameter wire coil is initially oriented so that its
plane is perpendicular to a magnetic field of 0.30 T pointing up.
During the course of 0.20 s , the field is changed to one of 0.24 T
pointing down.
What is the magnitude of the average induced emf in the
coil?

shows a 100-turn coil of wire of radius 15 cm in a 0.25 T
magnetic field. The coil is rotated 90? in 0.30 s, ending up
parallel to the field. What is the average emf induced in the coil
as it rotates?

Question 1: A 13.7 cm diameter loop of wire is initially
oriented perpendicular to a 1.9 T magnetic field. The loop is
rotated so that its plane is parallel to the field direction in
0.33 s .
Part A: What is the average induced emf in the loop?
Question 2: A 7.4 cm diameter circular loop of wire is in a 0.71
T magnetic field. The loop is removed from the field in 0.28 s .
Assume that the loop...

A 26.8 cm-diameter loop of wire is initially oriented
perpendicular to a 1.6 T magnetic field. The loop is rotated so
that its plane is parallel to the field direction in 0.22 s .
What is the magnitude of the average induced emf in the
loop?
Express your answer using two significant figures.
Eavg=
V

2. A circular coil with 30 turns of wire has a diameter of 2.00
cm. The total resistance of the coil is 0.350 Ω. An applied uniform
magnetic field is directed upward, perpendicular to the plane of
the coil.
a) If the magnetic field changes linearly from 0.000 T to 0.800
T in 0.500 s, what is the induced emf in the coil while the field
is changing?
b) What is the magnitude and direction (CW or CCW when looked...

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