a) An alternating current I(t)=I0 Cos wt flows through a large circular wire loop of radius...
a) An alternating current I(t)=I0 Cos wt flows through a large circular wire loop of radius b. A small circular wire loop of radius a is placed concentric with, and parallel to, the large loop. Calculate the field B(t) at the center of the large loop. Thus calculate the emf induced in the small loop.
b) Suppose alternating current I(t)=I0cos wt is fed to the small loop instead. What is the emf induced in the large loop?
Homework Answers
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a) An alternating current I(t)=I0 Cos wt flows
through a large circular wire loop of radius...
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the opposite direction of the rate of change of current? So why
wouldn't the induced current for loop 1 be clockwise?
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A small circular loop of area 6.00 cm is placed in the plane of, and concentric...
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os A circular loop of wire of radius 1.55cm is in a uniform magnetic field, with...
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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
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A circular loop of radius 0.78 m is placed in a region where there is a magnetic field of...
9. A small circular loop of area A is placed in the plane of, and concentric with, a large circular loop of radius R. Over the time interval from t = 0 to t = 1 s, the current in the large loop is reversed from +i, to -1, (a change in direction) at a constant rate according to i(t) = 1,(1 - 2t). The magnetic field Blarge loop produced by the large loop may be assumed to be constant...
4. A circular loop of wire with radius R330m supports a countercloskwse is increasing steadily in ime I5 Als A Sery small uch smaller time di d15 A/s A very small (much smaller than the irst loop) circular loop of wire with radius-1.2 em is concentrie wih th approximats so much smaller than the large loop that the magnetie fheld can be approximated as uniform over the region of the smaller loop a. Which direction is the induced current traveling...
A loop of wire with radius R lies in the xy-plane and carries a time varying current I(t) I, sin(ot). A smaller loop of wire with radius a lies in the xy-plane at the center of the larger loop. Assume that radius of the smaller loop is much smaller that the radius of the larger loop, a<<lR a) (10 points) At the center of the large loop calculate the magnitude and direction of the magnetic field B(t) due to the...
A single current-carrying circular loop of radius
R is placed next to a long, straight wire, as
shown in the
figure. The current I in the wire flows to the
right and the a current I flows counter-clockwise
on the loop. What is the net magnetic field produce at the center
of the loop?
I R/2
An decreasing current I flows in an elliptical loop of wire. Two
loops of wire are placed as shown. Why is the flow of induced
current counterclockwise for loop 1? I thought that mutually
induced emf equals (-)M(di/dt). Doesn't the negative sign mean that
the mutually induced emf (and hence the induced current) will be in
the opposite direction of the rate of change of current? So why
wouldn't the induced current for loop 1 be clockwise?
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a
circular loop of radius 0.78 m is placed in a region where there is
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