Class 10ScienceMagnetic Effects of Electric CurrentMix Examples - Magnetic Effects of Electric Current
Medium$(i)$ $A$ compass needle gets deflected when brought near a current-carrying conductor. Why?
$(ii)$ What happens to the deflection of the needle when the current in the conductor is increased?
$(ii)$ What happens to the deflection of the needle when the current in the conductor is increased?
(N/A) $(i)$ $A$ current-carrying conductor produces a magnetic field around it. When a compass needle is brought near this conductor,the magnetic field of the conductor exerts a force on the magnetic needle,causing it to deflect.
$(ii)$ The strength of the magnetic field produced by a current-carrying conductor is directly proportional to the magnitude of the current flowing through it. Therefore,when the current in the conductor is increased,the magnetic field strength increases,which leads to a greater deflection of the compass needle.
$(ii)$ The strength of the magnetic field produced by a current-carrying conductor is directly proportional to the magnitude of the current flowing through it. Therefore,when the current in the conductor is increased,the magnetic field strength increases,which leads to a greater deflection of the compass needle.
Explore More
Similar Questions
State the condition for electromagnetic induction to take place. $A$ cylindrical bar magnet is kept along the axis of a circular coil as shown in the figure. Will there be a current induced in the coil if the magnet is rotated about its axis? Discuss.
Medium
View SolutionWhich is the direction of magnetic force acting on a current-carrying wire placed in a magnetic field?
Easy
View SolutionAn electron enters a magnetic field at right angles to it as shown in the figure. The direction of force acting on the electron will be:
Easy
View SolutionIn domestic electrical wiring,what is the red-colored insulated wire used for?
Easy
View Solution$(a)$ Define electromagnetic induction.
$(b)$ Two coils $P$ and $S$ are wound over the same iron core. Coil $P$ is connected to a battery and a key,and coil $S$ is connected to a galvanometer. Draw a suitable diagram of this arrangement and write your observations when:
$(i)$ current in the coil $P$ is started by closing the key.
$(ii)$ current continues to flow in coil $P$.
$(iii)$ current in coil $P$ is stopped by removing the key.
Explain the reason for such observations.
$(b)$ Two coils $P$ and $S$ are wound over the same iron core. Coil $P$ is connected to a battery and a key,and coil $S$ is connected to a galvanometer. Draw a suitable diagram of this arrangement and write your observations when:
$(i)$ current in the coil $P$ is started by closing the key.
$(ii)$ current continues to flow in coil $P$.
$(iii)$ current in coil $P$ is stopped by removing the key.
Explain the reason for such observations.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo