$A$ magnetic compass shows a deflection when placed near a current-carrying wire. How will the deflection of the compass be affected if the current in the wire is increased? Support your answer with a reason.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) The deflection of the magnetic compass will increase.
This is because the strength of the magnetic field produced by a current-carrying straight conductor is directly proportional to the magnitude of the current flowing through it $(B \propto I)$.
Therefore,increasing the current increases the magnetic field strength,which exerts a greater force on the magnetic needle,resulting in a larger deflection.

Explore More

Similar Questions

Draw the pattern of magnetic field lines associated with a current-carrying straight conductor. State how the magnetic field produced changes:
$(i)$ with an increase in current in the conductor,and
$(ii)$ with an increase in the distance from the conductor.

$A$ constant current flows in a horizontal wire in the plane of the paper from east to west as shown in the figure. The direction of the magnetic field at a point will be North to South:

$A$ current $I$ passes through a circular loop $C$ and a solenoid $AB$ as shown below:
$(i)$ What is the polarity of: $(a)$ the face of the loop you are looking at? $(b)$ the end $B$ of the solenoid?
$(ii)$ What is the direction of the magnetic field at the centre of the loop?

Describe an activity to show that the magnetic field produced by a given current in a wire decreases as the distance from the wire increases.

$A$ coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is pushed into the coil?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo