Table of Contents
Can a current loop be treated as magnetic dipole?
A current loop is considered as a magnetic dipole.
What might be the reason for the deflection of the magnetic needle?
The compass needle is a small magnet. That’s why when a compass needle is brought near a bar magnet, its magnetic field lines interact with that of the bar magnet. Hence, a compass needle gets deflected near the magnet bar.
What will happen if the number of electric cells is increased on the magnetic needle?
(d) Increase ‘in the number of cells will further increase the deflection in magnetic compass. You are provided with a magnetic compass, an empty matchbox, a battery of two cells and connecting wires. Using these objects, how will you make a tester for testing an electric circuit?
What does the magnetic field pattern inside the solenoid indicate?
This pattern of field lines is indicating that the strength of the magnetic field is the same at all the points inside the current-carrying solenoid. That is, the field is uniform inside the current-carrying solenoid. -By increasing the current flowing through the solenoid, -By using soft iron as core in the solenoid.
What is the meaning of deflection?
1 : a turning aside or off course : deviation. 2 : the departure of an indicator or pointer from the zero reading on the scale of an instrument.
Does compass needle shows deflection in tap water?
Join the free ends of two wires momentarily. The compass needle should show deflection. Your tester with two free ends of the wire is ready….Table 1 Good/Poor Conducting Liquids.
|Material||Compass Needle Shows Deflection Yes/No||Good Conductor/Poor Conductor|
|Tap Water||Yes No||Good Poor|
What happens to the deflection in the needle when current in the conductor is increased?
(a) When current will be increased in the wire then the needle of the compass will deflect more as compaired to earlier deflection. (c) When the compass is taken away from the current carrying wire then the needle will come to its original position and it will point towards the north-south direction.
What happens to the deflection of compass needle placed at a point?
(c) Deflection decreases when the compass is moved away.
What happens to deflection If strength of current is increased?
The deflection increases when the current is increased because the magnitude of the field is directly proportional to the strength of the electric current. That is, stronger the electric field, stronger the magnetic field.
How does the deflection of the magnetic needle change if the current in the circuit is reversed?
current in the circuit has the electromagnetic induction taking place in it. thus, a magnetic field is created which results in the deflection of thw compass needle in its direction. if the current direction is reversed, therefore, A) reversed , because it aligns itself in the direction of magnetic field.
What is the shape of magnet used in an electric bell?
What do we see when the compass needle is brought near a wire in which current is flowing?
Magnetic Fields If you hold a compass near a wire through which current is flowing, the needle on the compass will be deflected. Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which the current is flowing.