state gov Kerala PSC Degree (Common Preliminary Examination) Mock Test Series 2025 General Science Physics Magnetism
Which among the following is/are used to measure the polarity of the earth’s magnetic field?
1. Horizontal component
2. Magnetic declination
3. Angle of dip
Select the correct answer using the codes given below:
1
1 and 2 only
2
3 only
3
2 and 3 only
4
1, 2 and 3