4. Which of the following statements is correct? A)Earth\'s geographic south pol

Question

4. Which of the following statements is correct? A)Earth's geographic south pole is the south pole of the Earth's magnetic fie ld. B) Earth's geographic north pole is the north pole of the Earth's magnetic field. C) The north pole of a magnet points towards the Earth's geographic south pole. D)The north pole of a magnet points towards the Earth's geographic north pole. E) None of the above statements is correct. 5. A wi direction of the current is perpendicular to 0.2 m, what is the magnitude of the magnetic force acting on the wire'? re carrying a 4-A current is placed in a magnetic field of strength 0.5 T and the the direction of the field. If the length of the wire A) 0.1 N B) 0.2N C) 0.4 N D) 0.8 N E) 0 N

Explanation / Answer

4.

Geographical South pole is the magnetic north pole of the earth and vice versa. and since opposites attract, North pole of the magnet points towards earth's geo. south pole.

option C

5.

F = I*L*B*Sin(theta). Here, theta = 90o so F = ILB = 4*0.5*0.2 = 0.4 N =====> option C

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