Consider points $A, B, C, D$ on a horizontal cardboard equidistant from center $O$ as shown in the figure. A copper wire perpendicular to the cardboard passes through the center $O$ and carries an electric current flowing upwards. Deflection of magnetic needle will be maximum when it is kept at the point

A

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

B

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

C

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

D

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

Open in App

Solution

The correct option is C $C$
Initially needle is in N,direction therefore deflection is maximum at point c.
$δ$ =180

Suggest Corrections

Similar questions

Question 1

When an electric current flows through a copper wire AB as shown in Figure, the wire

(a) Deflects a magnetic needle placed near it

(b) Becomes red hot

(d) Behaves like a fuse

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.)

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.)

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

Iron filings are sprinkled on a cardboard perpendicular to which a current carrying copper wire runs. The other components of the circuit have their usual meanings

The deflection of the compass needle decreases as the compass is moved away from the copper wire. This tells that:

An insulated copper wire is wound on a soft iron core. Current is passed through the coil such that at end ‘A’ the current flows anti- clockwise and a magnetic compass needle placed at other end ‘B’ of the coil.

i) If soft iron core is replaced by a cardboard tube, what will be the effect on the magnetic needle?

ii) What happens to the magnetic needle if the current is stopped?

Join BYJU'S Learning Program

Consider points A,B,C,D on a horizontal cardboard equidistant from center O as shown in the figure. A copper wire perpendicular to the cardboard passes through the center O and carries an electric current flowing upwards. Deflection of magnetic needle will be maximum when it is kept at the point

The correct option is C CInitially needle is in N,direction therefore deflection is maximum at point c.δ=180

The correct option is C $C$
Initially needle is in N,direction therefore deflection is maximum at point c.
$δ$ =180