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a magnetic needle of magnetic moment 0.2A-m is placed in a region with uniform magnetic field 4T. the maximum torque experienced by the needle will be |
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Answer» magnetic needle of magnetic MOMENT 0.2A-m is placed in a region with uniform magnetic FIELD 4T.To FIND:Maximum Torque ?Calculation:The torque experienced by a magnetic needle in a magnetic field intensity is expressed as follows:'M' is magnetic moment, 'B' is Field Intensity and is the angle between the the magnetic moment VECTOR and the field intensity vector.Now, MAX torque is when = 90° , because that's the max value for sine.Putting the respective values:So , max torque experienced is 0.8 Nm. |
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