Electrical kindly help last time it was rejected. A moving coil instrument whose resistance is 25 ohm gives afull scale deflection with a current of 1 mA. This instrument iswwwwwwto be used with a manganin shunt to extend its range to 100wwwwwwwmA. Calculate the error caused by a 10°C rise in temperaturewhen:I(1) Copper moving coil is connected directly across themanganin shunt.(2) A 200 manganin resistance is used in series with theinstrument moving coil. The temperature co-efficient of copperis 0.004/°C and that of manganin 0.00015/°C.

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A moving coil instrument whose resistance is 25 ohm gives a full scale deflection with a current of 1 mA. This instrument is to be used with a manganin shunt to extend its range to 100 mA. Calculate the error caused by a 10°C rise in temperature when: I (1) Copper moving coil is conn manganin shunt. onnected directly across the | (2) A 200 manganin resistance is used in series with the instrument moving coil. The temperature co-efficient of copper is 0.004/°C and that of manganin 0.00015/°C.

A moving coil instrument whose resistance is 25 ohm gives a full scale deflection with a current of 1 mA. This instrument is to be used with a manganin shunt to extend its range to 100 mA. Calculate the error caused by a 10°C rise in temperature when: I (1) Copper moving coil is conn manganin shunt. onnected directly across the | (2) A 200 manganin resistance is used in series with the instrument moving coil. The temperature co-efficient of copper is 0.004/°C and that of manganin 0.00015/°C.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 5RQ

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