A wire carrying current I and other carr...

A wire carrying current `I` and other carrying `2I` in the sam direction produce a magnetic field `B` at the midpoint. What will be the field when `2I` wire is swiched off?

`B//2`

`2B`

`B`

`4B`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

KINETIC THEORY OF GASES
ERRORLESS |Exercise QUESTIONS|126 Videos
MAGNETISM
ERRORLESS |Exercise Assertion & Reason|1 Videos

Similar Questions

Explore conceptually related problems

Two parallel wires carrying current I and 2I in same direction have magnetic field B at the midpoint between them. If the current 2I is switched off, the magnetic field at that point will be

Two parallel long wires carry currents i_(1) and i_(2) with i_(1) gt i_(2) .When the current are in the same direction, the magnetic field at a point midway between the wire is 20muT .If the direction of i_(1) ,is reversed.the field becomes 30muT .The ratio i_(1)//i_(2) is

Two parallel, long wires carry current i_(1) and i_(2) with i_(1)gti_(2) . When the currents are in the same direction, the magnetic field at a point midway between the wires is 30 muT . If the direction of i_(1) is reversed , the field becomes 90muT . The ratio i_(1)//i_(2) is

A conducting wire carrying current I is shown in the figure. The magnitude of magnetic field at the point P will be

Two long parallel wires carry equal current I flowing in the same direction are at a distance 2d apart. The magnetic field B at a point lying on the perpendicular line joining the wires and at a distance x from the midpoint is

A long wire carrying current 'I' is bent into the shape as shown in the figure. The net magnetic field intensity at the centre 'O' is

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

ERRORLESS -MAGNETIC EFFECT OF CURRENT-Exercise

An electron is revolving round a proton, producing a magnetic field of...
Text Solution
|
Two concentric coils each of radius equal to 2 pi cm are placed at rig...
Text Solution
|
A wire carrying current I and other carrying 2I in the sam direction p...
Text Solution
|
Two long parallel wires P and Q are both perpendicular to the plane of...
Text Solution
|
The direction of magnetic field lines due to straight conductor carryi...
Text Solution
|
For the magnetic field to be maximum due to a small element of current...
Text Solution
|
A proton moving with a constant velocity passes through a region of sp...
Text Solution
|
A uniform magnetic field and a uniform electric field are produced, po...
Text Solution
|
Two particles X and Y having equal charges, after being accelerated th...
Text Solution
|
A beam of ions with velocity 2xx10^5ms^-1 enters normally into a unifo...
Text Solution
|
The radius of curvature of the path of the charged particle in a unifo...
Text Solution
|
An electron has mass 9xx10^(-31)kg and change 1.6xx10^(-19)C is moving...
Text Solution
|
A proton (mass m and charge +e) and an alpha-particle (mass 4 m and ch...
Text Solution
|
A charged particle moving in a magnetic field experiences a resultant ...
Text Solution
|
If the direction of the initial velocity of a charged particle is neit...
Text Solution
|
If the direction of the initial velocity of a charged particle is neit...
Text Solution
|
Particles having positive charges occasionally come with high velocity...
Text Solution
|
A 2MeV proton is moving perpendicular to a uniform magnetic field 2.5 ...
Text Solution
|
A charged particle moves with velocity v in a uniform magnetic field v...
Text Solution
|
A proton is moving along Z-axis in a magnetic field. The magnetic fie...
Text Solution
|