Which of the following factors limit the deflection of the pointer of a PMMC instrument of about

Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o? 

1. Its damping mechanism 

2. Linearity of magnetic field in which the coil moves 

3. Control spring arrangement 

4. Shape of pole shoe for the horse shoe magnet 

 Select the correct answer using the code given below: 

 (a) Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4 

by

1 Answer

Answer :

Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o? 

1. Its damping mechanism 

2. Linearity of magnetic field in which the coil moves 

3. Control spring arrangement 

4. Shape of pole shoe for the horse shoe magnet 

 Select the correct answer using the code given below: 

 (a) Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4 

by

Related questions

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Description : Derive the relation for deflection torque in PMMC instrument. 

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