Q. Which of the following statements is not true
A) While taking reading of tangent galvanometer, the plane of the coil must be set at right angles to the earth’s magnetic meridian
B) A short magnet is used in a tangent galvanometer since a long magnet would be heavy and may not easily move
C) Measurement with the tangent galvanometer will be more accurate when the deflection is around $45{^\circ}$
D) A tangent galvanometer can not be used in the polar region
Explanation
(a) In tangent galvanometer experiment the plane of the coil is first set in the magnetic meridian
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.