The strength of a magnetic field due to a solenoid can be increased by

(a) increasing the number of turns in the solenoid
(b) increasing the current in the solenoid
(c) winding the solenoid around a magnetic material
(d) all of these

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Solution

(d) all of these
The strength of a magnetic field due to a solenoid can be increased by increasing the number of turns in the solenoid. It can also be increased by increasing the current and winding the solenoid around a magnetic material.

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Q. The strength of a magnetic field due to a solenoid can be increased by

(a) increasing the number of turns in the solenoid
(b) increasing the current in the solenoid
(c) winding the solenoid around a magnetic material
(d) all of these

Q. Choose the correct statement from the following:
The strength of a solenoid can be increased by increasing the number of turns.
The magnetic field due to a solenoid is similar to the magnetic field produced by a bar magnet.

Q. Which of the following factors regarding solenoid is/are incorrect?

I.The current flowing in a solenoid is inversely proportional to the strength of the magnetic field:

B α \frac{1}{I}

II.The number of turns of wire forming the solenoid is directly proportional to the magnetic field

B α n

III.The magnetic field of a solenoid depends on the nature of material inside the salenoid as

B α \frac{1}{μ}

where

μ

is the permeability of the material.

The magnetic field strength of a current carrying solenoid increases with

(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 ?

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The strength of a magnetic field due to a solenoid can be increased by (a) increasing the number of turns in the solenoid (b) increasing the current in the solenoid (c) winding the solenoid around a magnetic material (d) all of these

(d) all of theseThe strength of a magnetic field due to a solenoid can be increased by increasing the number of turns in the solenoid. It can also be increased by increasing the current and winding the solenoid around a magnetic material.

The strength of a magnetic field due to a solenoid can be increased by

(a) increasing the number of turns in the solenoid
(b) increasing the current in the solenoid
(c) winding the solenoid around a magnetic material
(d) all of these

(d) all of these
The strength of a magnetic field due to a solenoid can be increased by increasing the number of turns in the solenoid. It can also be increased by increasing the current and winding the solenoid around a magnetic material.