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A student wishes to suspend a square loop of wire at a 45° angle to the vertical using the Earth's magnetic field. The geometry is depicted in (Figure 1). At the student's location the Earth's magnetic field has a magnitude of 4.0 x 10-5T and is oriented 60.0° below horizontal. All of the counterclockwise torque acting on the loop arises from the magnetic force on the bottom side of the square. Part A Is the current in the loop clockwise or counterclockwise, as viewed from above? O Clockwise O Counterclockwise Submit ▾ Part B Request Answer The loop is a square with mass m=0.0099 kg and sides of length L=0.10 m. How much current must flow through the loop to suspend it as shown? (Note: The angle between the plane of the loop and t is 105°.) Express your answer to two significant figures and include appropriate units. μA Value → C Units ?

A student wishes to suspend a square loop of wire at a 45° angle to the vertical using the Earth's magnetic field. The geometry is depicted in (Figure 1). At the student's location the Earth's magnetic field has a magnitude of 4.0 x 10-5T and is oriented 60.0° below horizontal. All of the counterclockwise torque acting on the loop arises from the magnetic force on the bottom side of the square. Part A Is the current in the loop clockwise or counterclockwise, as viewed from above? O Clockwise O Counterclockwise Submit ▾ Part B Request Answer The loop is a square with mass m=0.0099 kg and sides of length L=0.10 m. How much current must flow through the loop to suspend it as shown? (Note: The angle between the plane of the loop and t is 105°.) Express your answer to two significant figures and include appropriate units. μA Value → C Units ?

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mg 45° Pivot 105° F₁ B
Transcribed Image Text:mg 45° Pivot 105° F₁ B
A student wishes to suspend a square loop of wire at a 45° angle to the vertical using the Earth's magnetic field. The geometry is depicted in (Figure 1). At the student's location the Earth's magnetic field has a magnitude of 4.0 x 10-5T and is oriented 60.0° below horizontal. All of the counterclockwise torque acting on the loop arises from the magnetic force on the bottom side of the square. Part A Is the current in the loop clockwise or counterclockwise, as viewed from above? O Clockwise O Counterclockwise Submit Part B Request Answer The loop is a square with mass m = 0.0099 kg and sides of length L = 0.10 m. How much current must flow through the loop to suspend it as shown? (Note: The angle between the plane of the loop and the magnetic force is 105⁰.) Express your answer to two significant figures and include appropriate units. μA Value Units ?
Transcribed Image Text:A student wishes to suspend a square loop of wire at a 45° angle to the vertical using the Earth's magnetic field. The geometry is depicted in (Figure 1). At the student's location the Earth's magnetic field has a magnitude of 4.0 x 10-5T and is oriented 60.0° below horizontal. All of the counterclockwise torque acting on the loop arises from the magnetic force on the bottom side of the square. Part A Is the current in the loop clockwise or counterclockwise, as viewed from above? O Clockwise O Counterclockwise Submit Part B Request Answer The loop is a square with mass m = 0.0099 kg and sides of length L = 0.10 m. How much current must flow through the loop to suspend it as shown? (Note: The angle between the plane of the loop and the magnetic force is 105⁰.) Express your answer to two significant figures and include appropriate units. μA Value Units ?
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