Home
Class 12
PHYSICS
Two long, parallel conductors carry curr...

Two long, parallel conductors carry currents in the same direction as shown in Fig. Conductor A carries a current of 150A and is held firmly in position. Condcutor B carries current `I_B` and is allowed to slide freely up and down (parallel to A) between a set of non-coducting guides. If the mass per unit length of conductor B is `0.001 gcm^-1` , what value of current `I_B` will result in equilibrium when the distance between the two conductors in 2.50cm?

Text Solution

Verified by Experts

`(mu_0)/(4pi)xx(2I_AI_Bl)/r=mg`
where `r=2.5cm`
`m=(0.100g//cm)l`
Solve to get `I_B=250/3A`
Promotional Banner

Topper's Solved these Questions

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS ENGLISH|Exercise Exercise (subjective )|10 Videos

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS ENGLISH|Exercise Exercise (single Correct )|75 Videos

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS ENGLISH|Exercise Concept Exercise 2.1|35 Videos

  • RAY OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise DPP 1.6|12 Videos

  • WAVE OPTICS

    CENGAGE PHYSICS ENGLISH|Exercise Comprehension Type|14 Videos

Similar Questions

Explore conceptually related problems

Two long parallel conductors are carrying currents in the same direction as shown in the figure. The upper conductor A carrying a current of 100 A is held firmly in position. The lower conductor B carries a current of 50 A and free to move up and down. The linear mass density of the lower conductor is 0.01 kg/m.

The two linear parallel conductors carrying currents in the opposite direction…………………each other.

Shown in Fig. is a conductor carrying current I. Find the magnetic field intensity at point O.

A conductor PQ, carrying a current i is placed perpendicular to a long conductor xy carrying a current i. The direction of force on PQ will be

Two long straight parallel conductors 10 cm apart, carry currents of 5A each in the same direction. Then the magnetic induction at a point midway between them is

A conductor AB of length l carrying current i is placed perpendicular to a long straight conductor carrying a current I as shown. Force on AB will be

A and B are two conductors carrying a current i in the same direction x and y are two electron beams moving in the same direction. There will be

Two long parallel wires placed 0.08 m apart, carry currents 3 A and 5 A in the same direction. what is the distance from the conductor carrying the larger current to the point where the resultant magnetic field is zero?

Two long parallel conductors carry currents I and 2I in the same direction. The magnetic induction at a point exactly mid way between them is B . If the current in the first conductor is reversed in direction, the magnetic induction at the same point will be

Shown in the figure is a conductor carrying a current i. the magnetic field at the origin is :