How does the shape of the coil affect the magnetic field?

How does the shape of the coil affect the magnetic field?

The advantage of using the coil shape is that it increases the strength of the magnetic field produced by a given current. The magnetic fields generated by the separate turns of wire all pass through the center of the coil and add (superpose) to produce a strong field there.

How does the shape of the magnet influence the magnetic field?

The shape of a magnet does affect its strength. If a magnet has a more pointed end, that end will be stronger than the rest of the magnet. This is because the shape affects the distribution of the magnetic energy in the space it occupies.

What is the shape of the magnetic field induced around the coil of wire?

When a current flows in a wire, it creates a circular magnetic field around the wire. This magnetic field can deflect the needle of a magnetic compass. The strength of the magnetic field is greater closer to the wire, and increases if the current increases.

What determines the shape of a magnetic field?

Magnetic field lines form in concentric circles around a cylindrical current-carrying conductor, such as a length of wire. The direction of such a magnetic field can be determined by using the “right-hand grip rule” (see figure at right). The strength of the magnetic field decreases with distance from the wire.

Can we see magnetic flux lines Yes or no?

Explanation: No, we cannot see magnetic flux lines as the “lines of magnetic flux” is purely an imaginary concept to understand the magnetic field clearly.

What are two ways to find out the shape of a magnetic field?

Magnetic fields can be mapped out using small plotting compasses :

• place the plotting compass near the magnet on a piece of paper.
• mark the direction the compass needle points.
• move the plotting compass to many different positions in the magnetic field, marking the needle direction each time.

Does a coil carrying electric current create a magnetic field?

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current . Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil. The magnetic field disappears when the current is turned off.

What causes a magnetic field to be set up around a wire?

A current carrying conductor, such as a metal wire , will produce a magnetic field around it because of the motion of charge within the wire itself. This motion produces or sets up a magnetic field around the wire in the form of concentric circles.

Can the strength of the field increase in a coil?

The strength of a coil’s magnetic field increases not only with increasing current but also with each loop that is added to the coil. A long, straight coil of wire is called a solenoid and can be used to generate a nearly uniform magnetic field similar to that of a bar magnet.

What does a moving magnet create in a coil of wire?

When the magnet is moved near the coil made of wire, the number of magnetic field lines produced by magnet passing through the coil changes. This change in the number of magnetic field lines passing through the coil induces current in the coil.