Currentvoltegeot power.. ...controlling torque .this torque is equal to rhe quantity to be measured or power....$ spring control phospher Bronze spiral hair spring wound in opposite direction as shown in ..the endof these spring are attached to a spindle The outervend of lower of lower spring .as shown .fixed whilecvthat of upper spring is attached to alever the adjustment of which of givesvzerco adjust ments when thevpointeris defleated .one of the spring unwinds itself while the orher is twisted .the twisted spring vproduces a controlluningtorque thd final deflection of the pointer is given when the deflecting torque is equal to the controlling torque.
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Currentvoltegeot power.. ...controlling torque .this torque is equal to rhe quantity to be measured or power....$ spring control phospher Bronze spiral hair spring wound in opposite direction as shown in ..the endof these spring are attached to a spindle The outervend of lower of lower spring .as shown .fixed whilecvthat of upper spring is attached to alever the adjustment of which of givesvzerco adjust ments when thevpointeris defleated .one of the spring unwinds itself while the orher is twisted .the twisted spring vproduces a controlluningtorque thd final deflection of the pointer is given when the deflecting torque is equal to the controlling torque.