wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Look at the figure given below and answer question based on that.

Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire runs. A compass is placed at point 'P'. The other components of the circuit have their usual meanings

If the polarity of the battery in the circuit is changed then__


A

nothing happens to the compass.

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

the deflection of the compass needle gets reversed.

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

the deflection of the compass needle increases a little.

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

the deflection of the compass needle decreases a little.

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

The correct option is B

the deflection of the compass needle gets reversed.


Reversing the direction of current in the circuit reverses the direction of the magnetic field strength. As the direction of magnetic field strength reverses its direction, the deflection of the compass needle also reverses.


flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electromagnetic Induction and Electric Generators
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon