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Deflecting torque is ________ quantity under measurement in PMMC instruments.
- ADirectly proportional
- BInversely proportional
- CDirectly proportional to square of
- DInversely proportional to square of
Answer not set
Discussion 1
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CCommunity
In PMMC instruments, the deflecting torque is given by
Td = BINA
Where Td = Deflecting torque in N-m
B = Flux density, wb/m2
I = Current in the Coil, amperes
N = Number of turns of the coil
A = Effective coil area m2
Deflecting torque is directly proportional to current.
Td = BINA
Where Td = Deflecting torque in N-m
B = Flux density, wb/m2
I = Current in the Coil, amperes
N = Number of turns of the coil
A = Effective coil area m2
Deflecting torque is directly proportional to current.