For a vibration magnetometer, the time period of the suspended bar magnet can be reduced by:

1.  moving it towards the south pole
2.  moving it towards the north pole
3.  moving it towards the equator
4.  anyone of them

Subtopic:  Bar Magnet |
 64%
From NCERT
AIPMT - 1999
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Two bar magnets having the same geometry with magnetic moments M and 2M are firstly placed in such a way that if their similar poles are on the same side then their time period of oscillation is T1. Now if the polarity of one of the magnets is reversed then the time period of oscillation is T2. The relation between T1 & T2 is:

1. T1<T2

2. T1=T2

3. T1>T2

4. T2=

Subtopic:  Bar Magnet |
 67%
From NCERT
AIPMT - 2002
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

A bar magnet is oscillating in the Earth's magnetic field with a period T. What happens to this period and motion if this mass is quadrupled:

1. motion remains S.H.M. with time period = T/2
2. motion remains S.H.M. with time period = 2T
3. motion remains S.H.M. with time period = 4T
4. motion remains S.H.M. with time and period remains nearly constant
Subtopic:  Bar Magnet |
 67%
From NCERT
AIPMT - 2003
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh