An LVDT is used to measure displacement. The LVDT feeds a Voltmeter of 0-5 V range through a 250 gain amplifier. For a displacement 0.5 mm the output of LVDT is 2 mV. The sensitivity of instrument is

• 0.1 V/mm
• 0.5 V/mm
• 1 V/mm
• 5 V/mm