A circular loop of area A = 6 cm2 is in a region where there is...
A circular loop of area A = 6 cm2 is in a region where there is a uniform and steadily decreasing magnetic field. The direction of the magnetic field is at a 30
Homework Answers
The rate of change of the magnetic flux through the loop is,
Rate of change of magnetic flux = -d(BA cos(theta))/dt
= -Acos(theta) dB/dt
= -(6x10-4 m2)cos30o [(5x10-3 T - 10x10-3 T) / (5 s - 2 s]
= 8.66x10-7 V (or Wb/s)
= 0.866 uV
A small circular loop of area 2.01 cm2 is placed in the plane of, and concentric...
A small circular loop of area 2.01 cm2 is placed in the plane of, and concentric with, a large circular loop of radius 1.04 m. The current in the large loop is changed at a constant rate from 206 A to -206 A (a change in direction) in a time of 1.24 s, starting at t = 0.What is the magnitude of the magnetic field at the center of the small loop due to the current in the large loop...
A square and a circular loop with the same area lie in the xy plane, where...
A square and a circular loop with the same area lie in the xy plane, where there is a uniform magnetic field B pointing at some angle theta with respect to the positive z-direction. Each loop carries the same current, in the same direction. Which magnetic torque is larger? a) The torque on the square loop b) The torque on the circular loop c) The torques are the same d) more information is needed
A circular loop of wire of radius R carries a current I in a region where...
A circular loop of wire of radius R carries a current I in a region where a uniform magnetic field of magnitude B0 is present. (a) If the magnetic dipole moment of the loop makes an angle θ < π/2 with the magnetic field, do a drawing that includes the loop of current, its magnetic dipole moment, the magnetic field, and the direction of the torque experienced by the loop. Make sure to indicate the current i and the angle...
If a circular loop of wire of radius 14.9 cm is located in a region where...
If a circular loop of wire of radius 14.9 cm is located in a region where the spatially uniform magnetic field perpendicular to the plane of the loop is changing at a rate of +1.6 ✕ 10−3 T/s, find the value of the induced EMF in this loop due to this changing magnetic field.
24 A circular loop of wire is in a region of spatially uniform magnetic field directed...
24 A circular loop of wire is in a region of spatially uniform magnetic field directed into the page. Determine the direction of the induced current (as viewed from above) when the magnitude of the magnetic field is increasing. a. Clockwise b. Counterclockwise c. No current flows. 25 An electron enters a region where the uniform magnetic field strength is 4.0 T at a velocity of 4.88 x 10^m/s perpendicular to the field. Determine the radius of gyration of the...
a circular loop of radius 0.78 m is placed in a region where there is a...
a
circular loop of radius 0.78 m is placed in a region where there is
a magnetic field of strength 5 t directed perpendicularly out of
the plane of loop if the loop is rotated by 90 deg in 0.1 seconds
so that the plane of the loop is parallel to the field calculate
the average emf induced in the loop
A circular loop of radius 0.78 m is placed in a region where there is a magnetic field of...
A circular loop of flexible conducting wire has an initial circumference of 150cm. This loop is...
A circular loop of flexible conducting wire has an initial
circumference of 150cm. This loop is in a uniform 1.5 T magnetic
field, which remains parallel to the loop's area vector. The loop
begins to shrink, decreasing the circumference at a rate of 5
cm/s.
A) Calculate the EMF around the loop 4 seconds after it begins
to shrink
B) Is the EMF increasing or decreasing with time?
C) Calculate the change in magnetic field required to keep the
EMF...
Chapter 30, Problem 032 A loop antenna of area A = 3.75 cm2 and resistance R...
Chapter 30, Problem 032 A loop antenna of area A = 3.75 cm2 and resistance R = 6.08 μΩ is perpendicular to a uniform magnetic field of magnitude 22.2 μΤ The field magnitude drops to zero in 4.74 ms. How much thermal energy is produced in joules in the loop by the change in field? Number the tolerance is +/-596 Units
A circular loop is in a region where there is a 1.0x10-5-T magnetic field perpendicular to...
A circular loop is in a region where there is a 1.0x10-5-T magnetic field perpendicular to the plane of the loop. If the radius of the loop is shrinking at a rate of 0.010m/s, what is the induced voltage in the loop when the radius of the loop is 1.00m?
A circular loop of wire with radius r= 0.0480m and reistance R = 0.160 Ω is in a region of spatially uniform magnetic field
A circular loop of wire with radius r= 0.0480m and reistance R = 0.160 Ω is in a region of spatially uniform magnetic field, as shown in the figure. The magnetic field is directed out of the plane of the figure. The magnetic field has an initial value of 8.00 T and is decreasing dB/ dt = -0.680 T a) Is the induced current in the loop clockwise or counterclockwise? b) What is the rate at which electrical energy is being dissipated...
A square and a circular loop with the same area lie in the xy plane, where there is a uniform magnetic field B pointing at some angle theta with respect to the positive z-direction. Each loop carries the same current, in the same direction. Which magnetic torque is larger? a) The torque on the square loop b) The torque on the circular loop c) The torques are the same d) more information is needed
24 A circular loop of wire is in a region of spatially uniform magnetic field directed into the page. Determine the direction of the induced current (as viewed from above) when the magnitude of the magnetic field is increasing. a. Clockwise b. Counterclockwise c. No current flows. 25 An electron enters a region where the uniform magnetic field strength is 4.0 T at a velocity of 4.88 x 10^m/s perpendicular to the field. Determine the radius of gyration of the...
a
circular loop of radius 0.78 m is placed in a region where there is
a magnetic field of strength 5 t directed perpendicularly out of
the plane of loop if the loop is rotated by 90 deg in 0.1 seconds
so that the plane of the loop is parallel to the field calculate
the average emf induced in the loop
A circular loop of radius 0.78 m is placed in a region where there is a magnetic field of...
A circular loop of flexible conducting wire has an initial
circumference of 150cm. This loop is in a uniform 1.5 T magnetic
field, which remains parallel to the loop's area vector. The loop
begins to shrink, decreasing the circumference at a rate of 5
cm/s.
A) Calculate the EMF around the loop 4 seconds after it begins
to shrink
B) Is the EMF increasing or decreasing with time?
C) Calculate the change in magnetic field required to keep the
EMF...
Chapter 30, Problem 032 A loop antenna of area A = 3.75 cm2 and resistance R = 6.08 μΩ is perpendicular to a uniform magnetic field of magnitude 22.2 μΤ The field magnitude drops to zero in 4.74 ms. How much thermal energy is produced in joules in the loop by the change in field? Number the tolerance is +/-596 Units
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