Electric current is passed through a straight conductor passing through the center of a piece of cardboard .Some iron fillings are sprinkled on the cardboard and tapped.The iron fillings around the conductor

Settle as parallel lines

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Settle as circles

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Settle at one point

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Do not acquire any regular pattern

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Settle as circles
The electric current flowing through the straight conductor will produce magnetic field in concentric circles and hence the iron fillings around the conductor get attracted by that magnetic field and settle as those circles.

Suggest Corrections

Similar questions

Q. Electric current is passed through a straight conductor passing through the centre of a piece of cupboard. Some iron filings are sprinkled on the cardboard and tapped. How will the iron filings spread out around the conductor ?

A straight wire conductor passes vertically through a piece of cardboard sprinkled with iron filings. A current is passed through the wire in the upward direction and the cardboard is tapped gently.

The following diagram shows the arrows that represent the direction of the magnetic field lines

Name the law you will use to find the direction of the magnetic field lines.

A cardboard had iron fillings spread over it and a straight current carrying conductor passes through the centre of it. When the direction of current is reversed, what happens?

Q. concentric circles, centre, opposite, polarity, straight conductor, reversed, same, circular conductor.

Fill in the blanks in the following passage(s) from the words given above.

The magnetic field produced around a straight current carrying conductor is in the form of ________ with the ________ lying on the straight conductor. Take a copper wire AB. Pass it through a cardboard. Connect the wire to a battery through a key. Sprinkle some iron filings on the cardboard. Switch on the key and tap the cardboard gently. You will find that the iron filings arrange themselves in the form of concentric circles. Reverse the direction of current by changing the ________ of the battery. You will find that this time too, the iron filings arrange themselves in concentric circle but in _________ direction. Hence, the magnetic field lines of force around a ________ carrying electric current are concentric circles with the conductor at the centre. The direction of magnetic field changes if the direction of current is _________.

Q. Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire flows as shown.

What happens to a compass at the point P, if the current through the circuit is increased? (Ignore the magnetic field of the Earth.)

Join BYJU'S Learning Program

Electric current is passed through a straight conductor passing through the center of a piece of cardboard .Some iron fillings are sprinkled on the cardboard and tapped.The iron fillings around the conductor

The correct option is A Settle as circlesThe electric current flowing through the straight conductor will produce magnetic field in concentric circles and hence the iron fillings around the conductor get attracted by that magnetic field and settle as those circles.

The correct option is A Settle as circles
The electric current flowing through the straight conductor will produce magnetic field in concentric circles and hence the iron fillings around the conductor get attracted by that magnetic field and settle as those circles.