32. STATEMENT-1 The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil. and STATEMENT-2 Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized. (A) STATEMENTI is True, STATEMENT-2 is True; STATEMENT-2 is a correct explanation for STATEMENT-1 (B) STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is NOT a correct explanation for STATEMENT-1 (C) STATEMENT-1 is True, STATEMENT-2 is False (D) STATEMENT-1 is False, STATEMENT-2 is True
To provide a radial magnetic field such that plane of the coil is always perpendicular to the magnetic field. As the previous gentleman said, the field is kept the same angle so that force is constant.
The answer is C, but that doesn't help you. How will you know if I am right? For example, placing a magnetic material in the coil of a galvanometer could cause it to respond more slowly due to the inertia of the mass, so Statement 1 may not be true. As for Statement 2, iron has high permeability but that means it CAN be magnetized and demagnetized easly, .I think. Rather than just putting your homework questions on Yahoo! Answers and expecting others to give you correct answers, which is really a lame game, it would be better to explain your own understanding of the problem. No one really wants to do your homework for you, and if they say A, B, C, or D, you could do just as well yourself by making a random guess. Instead, ask what it is that you don't get about the question. Then maybe you can actually learn something, OK? I'm not sure at all about my answer, but by explaining it I give others the opportunity to correct my thinking.
