work done in moving coil galvanometer formula
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PQ = RS = l, length of the coil and PS = QR = b, breadth of the coil. Force on PQ, F = BI (PQ) = BIl. According to Fleming's left-hand rule, this force is normal to the plane of the coil and acts outwards. I = (C / nBA) × θ where C is the torsional constant of the spring; i.e. the restoring torque per unit twist.
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0
Answer:
PQ = RS = l, length of the coil and PS = QR = b, breadth of the coil. Force on PQ, F = BI (PQ) = BIl. According to Fleming's left-hand rule, this force is normal to the plane of the coil and acts outwards. I = (C / nBA) × θ where C is the torsional constant of the spring; i.e. the restoring torque per unit twist.
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