A student observes that the compass needle deflection decreases as it moves farther from a current- carrying straight conductor. What is the most likely reason for this observation?

Question

A student observes that the compass needle deflection decreases as it moves farther from a current- carrying straight conductor. What is the most likely reason for this observation? — Exam MCQ

rrbjepyq.in · Accepted Answer

C. The magnetic field strength decreases as the distance from the conductor increases — The correct choice is The magnetic field strength decreases as the distance from the conductor increases. The result follows from the relevant magnetic-field, electromagnetic-induction or Fleming/right-hand-rule principle.

rrbjepyq.in · Answer

A. The Earth's magnetic field becomes stronger with distance

rrbjepyq.in · Answer

B. The electric current in the conductor decreases with distance

rrbjepyq.in · Answer

D. The shape of the wire affects field strength only at close distances

A student observes that the compass needle deflection decreases as it moves farther from a current- carrying straight conductor. What is the most likely reason for this observation?

📚 Related Questions — Magnetism