Question 1: Describe the fundamental principle of indicating instruments?
Question 2: With a neat sketch describe in detail moving iron attraction type instrument.
Question 3: Describe the categorization of electrical instruments.
Question 4: Describe the significance of controlling torque and damping torque relevant to the operation of indicating instruments.
Question 5: With a neat sketch describe in detail moving iron repulsion type instrument.
Question 6: Illustrate the given with reference to the indicating instruments.
a) Deflecting torque.
b) Controlling torque.
c) Damping torque.
d) Scale and pointer.
Question 7: Describe with a neat sketch, the working principle of a PMMC instrument.
Question 8: Distinguish between moving coil and moving iron instruments.