The magnetic field inside a long straight solenoid carrying current

is zero

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decreases as we move towards its end

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increases as we move towards its end

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is the same at all points

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Solution

The correct option is D
is the same at all points

The magnetic field produced by a current-carrying solenoid is similar to the magnetic field produced by a bar magnet. Magnetic field lines pass through the solenoid and return to the other end. They are in the form of parallel straight lines and are equally spaced inside the solenoid. This indicates that the strength of the magnetic field is the same at all the points inside the solenoid.

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Similar questions

The magnetic field inside a long straight solenoid carrying current :

(a) is zero

(b) decreases as we move towards its end.

(d) is the same at all points.

Question 3
Choose the correct option.
The magnetic field inside a long straight solenoid-carrying current
(a) is zero
(b) decreases as we move towards its end
(c) increases as we move towards its end
(d) is the same at all points

The magnetic field inside a long straight solenoid carrying current is the same at all points.

Q. Question 10
The strength of magnetic field inside a long current carrying straight solenoid is

(a) more at the ends than at the centre
(b) minimum in the middle
(c) same at all points
(d) found to increase from one end to the other

Q. Assertion: Magnetic field inside a solenoid is in straight lines but while coming out of a solenoid, they diverge and move far apart.

Reason: The magnetic field is maximum inside a solenoid and starts to decrease as we move away from the solenoid.

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