The magnetic field strength of a current carrying solenoid increases with a rise in its temperature.

True

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False

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Solution

The correct option is B
False

Heating (increasing temperature) has no effect on the strength of a magnetic field produced by current flowing in a coil of wire. The strength of that magnetic field depends on the current going around the electromagnet. Although heating permanent magnets do demagnetise them but have almost no influence on electromagnets. Hence, rise in temperature will not increase the magnetic field strength of a solenoid.

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Similar questions

The magnetic field strength of a current carrying solenoid increases with

The strength of a current carrying solenoid increases with a rise in its temperature.

(a) What is a solenoid ? Draw a sketch to show the magnetic field pattern produced by a current-carrying solenoid.

(b) Name the type of magnet with which the magnetic field pattern of a carrent-carrying solenoid resembles.

(c) What is the shape of field lines inside a current-carrying solenoind ? What does the pattern of field lines inside a current-carrying solenoid indicate ?

(d) List three ways in which the magnetic field strength of a current-carrying solenoid can be increased ?

(e) What type of core should be put inside a current-carrying solenoid to make it into an electromagnet ?

The strength of magnetic field inside a long current carrying straight solenoid is

Statement 1: The magnetic field strength of a bar magnet is the maximum at its poles.

Statement 2: There is no magnetic field inside a current-carrying solenoid.

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