Advertisements
Advertisements
Question
By reversing the direction of current in a wire, the magnetic field produced by it:
Options
Gets reversed in direction
Increases in strength
Decreases in strength
Remains unchanged in strength and direction
Advertisements
Solution
By reversing the direction of current in a wire, the magnetic field produced by it gets reversed in direction.
Hint: On reversing the direction of current in a wire, the polarity of the faces of the wire also reverses. Thus, the direction of magnetic field produced by it also gets reversed.
RELATED QUESTIONS
Describe an experiment to demonstrate that there is a magnetic field around a current carrying conductor.
What will happen to a compass needle when the compass is placed below a wire with needle parallel to it and a current is made to flow through the wire? Give a reason to justify your answer.
When current flows in a wire, it creates ______.
The present of magnetic field at a point can be detected by ______.
State whether a magnetic field is associated or not around a current carrying conductor.
State and explain ‘Ampere’s Swimming Rule’ to determine the direction of magnetic field (or magnetic lines of force) around a current carrying conductor.
Describe an experiment to show that there is a magnetic field around a current carrying conductor.
By using a compass needle describe how can you demonstrate that there is a magnetic field around a current carrying conductor.
