Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is [MP PMT 2001]

Twice the magnetic field produced due to each of the wires

Half of the magnetic field produced due to each of the wires

If assertion is true but reason is false.

Two infinitely long parallel wires carry equal current in same directi

1.	Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is [MP PMT 2001]
A.	Twice the magnetic field produced due to each of the wires
B.	Half of the magnetic field produced due to each of the wires
C.	If assertion is true but reason is false.
D.	Zero
Answer» E.

Discussion

No Comment Found

Related MCQs

If the current is doubled, the deflection is also doubled in [Orissa JEE 2002]
A small cylindrical soft iron piece is kept in a galvanometer so that [MP PMT 2001]
A long wire A carries a current of 10 amp. Another long wire B, Which is parallel to A and separated by 0.1m from A, carries a current of 5 amp, in the opposite direction to that in A. what is the magnitude and nature of the force experienced per unit length of B \[({{\mu }_{0}}=4\pi \times {{10}^{-7}}\,weber/amp\text{-}m)\] [MP PET 2000]
In order to increase the sensitivity of a moving coil galvanometer, one should decrease [MP PMT 2000]
Two long parallel copper wires carry currents of 5A each in opposite directions. If the wires are separated by a distance of 0.5m, then the force between the two wires is [EAMCET (Engg.) 2000]
Magnetic dipole moment of a rectangular loop is [RPET 2000]
The current sensitivity of a moving coil galvanometer can be increased by [Roorkee 1999]
A triangular loop of side l carries a current I. It is placed in a magnetic field B such that the plane of the loop is in the direction of B. The torque on the loop is [MP PET 2003]
Two thin long parallel wires separated by a distance b are carrying a current i amp each. The magnitude of the force per unit length exerted by one wire on the other is [CPMT 1991; IIT 1986; Bihar MEE 1995; RPMT 1997; MP PET 1996; MP PMT 1994, 96, 99; UPSEAT 2001, 03]
The coil of a galvanometer consists of 100 turns and effective area of 1 square cm. The restoring couple is \[{{10}^{-8}}\,N-m/radian\]. The magnetic field between the pole pieces is 5 T. The current sensitivity of this galvanometer will be [MP PMT 1997]

Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is [MP PMT 2001]

Discussion

No Comment Found

Related MCQs

Reply to Comment