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2. A strain gauge of sensitivity 0.22 / Kg is used as a sensor in weight measurement system. Find the total weight applied for a total change in resistance of 1052 for the sensor.

2. A strain gauge of sensitivity 0.22 / Kg is used as a sensor in weight measurement system. Find the total weight applied for a total change in resistance of 1052 for the sensor.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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2. A strain gauge of sensitivity 0.22 / Kg is used as a sensor in weight measurement system. Find the total weight applied for a total change in resistance of 1052 for the sensor. 3. A 0-20A range ammeter is to be used to measure a current of 1500A with the help of a suitable instrument transformer. Only 2 turns of winding should be used in primary of the instrument transformer. Find the number of turns in the secondary. What will be the actual current if the ammeter reads 13.5A? 4. A moving coil instrument has the following data, Number of tums 100, Width of coil 20 mm, W 20mm Depth of coil - 30 mm, D - 30mm flux density in the air gap 0.1 Wb m. Calculate the deflecting torque when the coil carry a current of 10 mA. Also calculate the deflection, if the control spring constant (K) is 2 x 104 Nm degree.
Transcribed Image Text:2. A strain gauge of sensitivity 0.22 / Kg is used as a sensor in weight measurement system. Find the total weight applied for a total change in resistance of 1052 for the sensor. 3. A 0-20A range ammeter is to be used to measure a current of 1500A with the help of a suitable instrument transformer. Only 2 turns of winding should be used in primary of the instrument transformer. Find the number of turns in the secondary. What will be the actual current if the ammeter reads 13.5A? 4. A moving coil instrument has the following data, Number of tums 100, Width of coil 20 mm, W 20mm Depth of coil - 30 mm, D - 30mm flux density in the air gap 0.1 Wb m. Calculate the deflecting torque when the coil carry a current of 10 mA. Also calculate the deflection, if the control spring constant (K) is 2 x 104 Nm degree.
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