Biot Savart Law in Hindi

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Mock Test on Biot Savart Law for Students

The magnetic field at a distance (r) from the conductor is B. If the distance becomes r/2, what is the magnitude of the magnetic field?

(A) 0.5 B

(B) B

(C) 2 B

(D) 4 B

Option d - 4 B

An electric current passes through a straight wire. At a distance of 5 cm from the wire the magnetic field is B. The field at 20 cm from the wire would be :

(A) B/2

(B) B/4

(C) B/8

(D) B

Option b - B/4

The magnetic field at a point due to a current-carrying conductor is directly proportional to

(A) resistance of the conductor

(B) the thickness of the conductor

(C) distance from the conductor

(D) current flowing through the conductor

Option d - current flowing through the conductor

A current is passed through a straight wire. The magnetic field established around it has its lines of force :

(A) oval

(B) circular

(C) parabolic

(D) elliptical

Option b - circular

The direction of magnetic induction produced by the current-carrying conductor is found using :

(A) fleming's right-hand rule

(B) right-hand thumb rule

(C) palm rule (right hand)

(D) screw rule (right hand)

Option b - right-hand thumb rule

The energy resides in a current-carrying conductor in the form of

(A) magnetic field

(B) mechanical work

(C) electrostatic field

(D) gravitational field

Option a - magnetic field

The magnetic field at a point due to current (1) is 4 T. If the current in the conductor is doubled, then the magnetic field will be :

(A) 2T

(B) 4 T

(C) 6 T

(D) 8T

Option d - 8T

If the direction of the electric current is reversed, the direction of the magnetic field will get :

(A) remain the same

(B) reversed

(C) make an angle

(D) increase in magnitude

Option b - reversed

Magnetic field B due to a current element at all points on the axis of the element is :

(A) zero

(B) minimum

(C) maximum

(D) infinite

Option a - zero

Biot savart's law gives the relation for

(A) magnetic induction

(B) electric intensity

(C) electric potential

(D) magnetic potential

Option a - magnetic induction

Corresponding to maxwell, the unit of magnetic flux in the SI system is :

(A) weber

(B) tesla

(C) henry

(D) gauss

Option a - weber

We covered all the biot savart law in Hindi above in this post for free so that you can practice well for the exam.

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