1. The figure below is a block diagram of a voltmeter. The motor produces a torque...

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1. The figure below is a block diagram of a voltmeter. The motor produces a torque (T) proportional to voltage (V), and the output angular displacement (0) of the spring is proportional to T. The stiffness (Ks) of the spring can vary by ±10% about the nominal value of 5.10-2 rad N-1 m¹. To improve measurement accuracy, the measurement system will be modified by involving given components: i. a D.C. voltage amplifier of gain 1000 ii. a voltage subtraction unit iii. a stable angular displacement transducer of sensitivity 100 V rad-1 V Volts K=2x 10-1 NmV-1 Motor T Nm K₁=5 x 10-2 rad N-'m-¹ Spring 0 rad Questions: a. Draw a block diagram of a modified system using these components, which reduces the effect of changes in Ks. b. Calculate the effect of a 10% increase in Ks on the sensitivity of the modified system. 1. The figure below is a block diagram of a voltmeter. The motor produces a torque (T) proportional to voltage (V), and the output angular displacement (0) of the spring is proportional to T. The stiffness (Ks) of the spring can vary by ±10% about the nominal value of 5.10-2 rad N-1 m¹. To improve measurement accuracy, the measurement system will be modified by involving given components: i. a D.C. voltage amplifier of gain 1000 ii. a voltage subtraction unit iii. a stable angular displacement transducer of sensitivity 100 V rad-1 V Volts K=2x 10-1 NmV-1 Motor T Nm K₁=5 x 10-2 rad N-'m-¹ Spring 0 rad Questions: a. Draw a block diagram of a modified system using these components, which reduces the effect of changes in Ks. b. Calculate the effect of a 10% increase in Ks on the sensitivity of the modified system.