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23 Nov 2019
A thin, uniform rod with negligible mass and length 0.200 misattached to the floor by a frictionless hinge at point P.Ahorizontal spring with force constant k = 4.80 N/m connectstheother end of the rod to a vertical wall. The rod is in auniformmagnetic field B = 0.340 T directed into the page. There is acurrent of I = 6.50 A in the rod. Angle between rod and floor = 53.0 degrees direction of current is toward the floor a. Calculate the torque due to the magnetic force on therod,for an axis at P. (you can consider the total magnetic force on the rod to actatits center of mass.) b. When the rod is in equilibrium and makes an angle of53degrees with the floor, is the spring stretchedorcompressed? c. How much energy is stored in the spring when the rodis inequilibrium?
A thin, uniform rod with negligible mass and length 0.200 misattached to the floor by a frictionless hinge at point P.Ahorizontal spring with force constant k = 4.80 N/m connectstheother end of the rod to a vertical wall. The rod is in auniformmagnetic field B = 0.340 T directed into the page. There is acurrent of I = 6.50 A in the rod.
Angle between rod and floor = 53.0 degrees
direction of current is toward the floor
a. Calculate the torque due to the magnetic force on therod,for an axis at P.
(you can consider the total magnetic force on the rod to actatits center of mass.)
b. When the rod is in equilibrium and makes an angle of53degrees with the floor, is the spring stretchedorcompressed?
c. How much energy is stored in the spring when the rodis inequilibrium?
