The figure below shows an edge view of a square loop of mass m whose length is L on each side. Its lower edge is resting on a frictionless, horizontal surface. A current, I, is flowing around the loop in the direction shown. A constant magnetic field is present parallel to the horizontal surface. What is the magnitude of this field if the loop is in static equilibrium (Fnet = 0 and ₹net = 0) at an angle of 0? I B
The figure below shows an edge view of a square loop of mass m whose length is L on each side. Its lower edge is resting on a frictionless, horizontal surface. A current, I, is flowing around the loop in the direction shown. A constant magnetic field is present parallel to the horizontal surface. What is the magnitude of this field if the loop is in static equilibrium (Fnet = 0 and ₹net = 0) at an angle of 0? I B
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Transcribed Image Text:The figure below shows an edge view of a square loop of mass m whose length is L on each side. Its lower
edge is resting on a frictionless, horizontal surface. A current, I, is flowing around the loop in the direction
shown. A constant magnetic field is present parallel to the horizontal surface. What is the magnitude of this
field if the loop is in static equilibrium (Fnet = 0 and ₹net = 0) at an angle of 0?
I B
Expert Solution
Step 1
Since, loop is in rectangular form. So, its one side will go into the page of paper. When we apply the
right hand rule, we can find the direction of magnetic force is upward direction.
Lets find its value
Fb=ilB
Since, this loop is in equilibrium, so, net torque on the loop would be zero.
Lets find the torque about point O,
Torque=0
-Mg(l/2)cosθ + FbIcos θ=0
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