36. For a given wire-wound core, an increase in current through the coil
37. In the left hand rule, forefinger always represents
38. The Biotsavart's law is a general modification of
39. What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200?
40. Which of the following type of materials are not very important for engineering applications?
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