Table of Contents
- 1 Can a current carrying wire deflect a compass?
- 2 Why does a current carrying wire cause a compass needle to move?
- 3 What will happen if a current carrying wire is placed near another current carrying wire?
- 4 What happens to the compass needle when you place it in the wire loop when the circuit was turned on explain?
- 5 Which of the following is not true for an electromagnet?
- 6 What happen when a current carrying loop is placed inside a non uniform magnetic field?
- 7 Can a magnetic force do work on a current loop?
- 8 How does a single wire produce a magnetic field?
Can a current carrying wire deflect a compass?
When a current runs through the wire, the compass needle is deflected, illustrating the magnetic effects of current flowing in a wire. One set can be used with the overhead projector. No deflection is observed if the compass needle is placed near to and at right angles to the current carrying wire.
Why does a current carrying wire cause a compass needle to move?
Every electric current produces magnetism. This electricity produced an area of magnetism around the wire called a magnetic field. Since the compass needle is also a magnet, the magnetic field around the wire attracted and repelled the ends of the compass magnet and caused it to move.
What happens if you place a compass near a current conducting wire?
Moving charges produce magnetic fields which are proportional to the current and hence a current carrying conductor produces magnetic effect around it. As a result, the needle in the compass gets deflected when we place a compass near a current conducting wire.
What is a current carrying wire with a loop in it?
Magnetic Field Produced by a Current-Carrying Solenoid. A solenoid is a long coil of wire (with many turns or loops, as opposed to a flat loop). Because of its shape, the field inside a solenoid can be very uniform, and also very strong.
What will happen if a current carrying wire is placed near another current carrying wire?
When a current-carrying conductor is placed in a magnetic field, a mechanical force is exerted on the conductor which can make the conductor move.
What happens to the compass needle when you place it in the wire loop when the circuit was turned on explain?
The compass needle moves in response to the electricity because a magnetic field is created in the wire when the circuit is connected.
How does a compass needle change direction when it is placed near a current carrying wire?
Magnetic field strength is inversely proportional to the distance from the wire. A compass needle is placed near a current – carrying straight wire . (2) Magnitude of electric current in the wire is increased . (3) Teh compass needle is displaced away from the straight wire .
What happens to the compass needle as you move the compass around?
Electricity moved the compass needle which means electricity generates magnetic fields. When you move the compass away from the wire, the needle returns towards it original position (pointing towards magnetic north). This means the magnetic field becomes weaker the further you move from the wire.
Which of the following is not true for an electromagnet?
The correct option is C The magnetic strength cannot be changed. The magnetic strength of an electromagnet can be changed by increasing or decreasing the current. Poles of an electromagnet can be changed by reversing the direction of the current.
What happen when a current carrying loop is placed inside a non uniform magnetic field?
Hint The question is saying that a current- carrying loop is placed in a non- uniform magnetic field. Since the magnetic flux is non-uniform the change in magnetic field intensity will apply a force on the current- carrying loop and as a result, it’ll also apply a torque that is generated during the process.
What happens to the needle on a compass when the current flows?
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. The magnetic field produced by an electric current is always
What type of loop of wire is carrying current?
Q27.10Aloose, floppy loop of wire is carrying current The loop of wire is placed on a horizontal table in a uniform magnetic field perpendicular to the plane of the table. This causes the loop of wire to expand into a circular shape while still lying on the table.
Can a magnetic force do work on a current loop?
Exercises913 Q27.16The magnetic force acting on a charged particle can never do work because at every instant the force is perpendicular to the velocity. The torque exerted by a magnetic field can do work on a current loop when the loop rotates.
How does a single wire produce a magnetic field?
A magnetic field is created when an electric current flows through a wire. A single wire does not produce a strong magnetic field, but a wire coiled around an iron core does. We will investigate this behaviour.