Force and Torque on Current Loops Video Lessons

Concept

# Problem: Consider a 200 turn square loop 22 cm on a side.Randomized Variablesl = 22 cmCalculate the magnetic field strength (T) needed on the loop to create a maximum torque of 275 Nm if the loop is carrying 21 A

###### FREE Expert Solution

Magnetic torque:

$\overline{){\mathbf{\tau }}{\mathbf{=}}{\mathbf{N}}{\mathbf{B}}{\mathbf{A}}{\mathbf{i}}{\mathbf{·}}{\mathbf{s}}{\mathbf{i}}{\mathbf{n}}{\mathbf{\theta }}}$

A = L2 = (0.22m)2 = 0.0484m2

N = 200

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###### Problem Details

Consider a 200 turn square loop 22 cm on a side.

Randomized Variables
l = 22 cm

Calculate the magnetic field strength (T) needed on the loop to create a maximum torque of 275 Nm if the loop is carrying 21 A