Bissoy.com
Doctors Medicines MCQs Q&A

What happens to the magnetic field in the solenoid when the length of the solenoid increases?

What happens to the magnetic field in the solenoid when the length of the solenoid increases? Correct Answer Decreases

The magnetic field of a solenoid is inversely proportional to the length. Hence as the length increases, the magnetic field decreases.

Related Questions

Consider the following statement: a) Magnetic field lines are always form closed curve. b) Magnetic field lines start from north pole outside the magnet c) Magnetic field lines start from south pole outside the magnet Which of the following is a property of magnetic field lines?
A long solenoid has 500 turns. When a current of 2 amperes is passed through it, the resulting magnetic flux linked with each turn of the solenoid is 4 × 10–3 Wb. The self-inductance of the solenoid is -
A current carrying coil having magnetic moment M is placed in a magnetic field B. Initially the magnetic field is perpendicular to the plane of the coil and then coil turned about an axis such that the angle between the magnetic field and the plane of the coil become zero. Then choose the correct statement.
A force \(\vec F\), acting on a electric charge q, in presence of electro-magnetic field, moves the charge parallel to the magnetic field with velocity \(\vec v\). Then \(\vec F\) is equal to (where \(\vec E\)and \(\vec B\) are electric field and magnetic field respectively)
What happens to the magnetic field in the solenoid when the number of turns increases?
What happens to the magnetic field in the solenoid when the current increases?
When the magnetic field intensity in the current carrying conductor increases, what happens to the force in the conductor which is at right angles to the magnetic field?
Which of the following is the reason for an iron core increasing the magnetic field of a coil of wire? 1. The iron atoms line up to add the magnetic field. 2. Iron is, among other things, attracted to a magnetic field. Choose the correct code.
Which of the following statements are CORRECT? I. Change in magnetic field produces induced current. II. Flow of current in a conductor produces magnetic field. III. Magnetic field related to coil can be produced by motion between conductor and coil.
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: The magnetic field disappears when the current is turned off. B: A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil. C: An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.  D: Electromagnets usually consist of wire wound into a coil.