Multiple Choice

A long straight wire carries a current along the Z-axis. One can find two points in the X-Y plane such that :

Athe magnetic fields are equal
Bthe direction of the magnetic fields are the same
Correct Answer
Cthe magnitude of the magnetic fields are equal
Correct Answer
Dthe field at one point is opposite to that at the other point
Correct Answer

Solution

SIMILAR QUESTIONS

Magnetism

Which one of the following is a vector quantity ?

Magnetism

List two methods of producing magnetic fields.

Magnetism

A wire carrying $$I$$ is shaped as shown. Section $$AB$$ is a quarter circle of radius $$r$$. The magnetic field at $$C$$ is directed:

Magnetism

Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic lines of force concept :

Magnetism

You are provided with two similar bars, one is a magnet and the other is a soft iron bar. How will you distinguish between them without the use of any other magnet or bar? [Hint: A magnet when suspended freely will rest only in north-south direction, but soft iron bar will rest in any direction]

Magnetism

Can two magnetic field lines intersect each other? Give reason to your answer.

Magnetism

Sketch four magnetic field lines as obtained in a limited space on a horizontal plane in the earths magnetic field alone.

Magnetism

In a uniform magnetic field, the field lines are:

Magnetism

Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic lines of force concept :

Magnetism

What are magnetic field lines? How is the direction of a magnetic field at a point determined? Mention two important properties of magnetic field lines.

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