A straight horizontal copper wire carrie...

A straight horizontal copper wire carries a current i = 30 A. The linear mass density of the wire is 45 g/m. What is the magnitude of the magnetic field needed to balance its weight?

147 G

441 G

14.7 G

0 G

Text Solution

AI Generated Solution

Topper's Solved these Questions

LAWS OF MOTION
DISHA|Exercise physics|85 Videos
MAGNETISM AND MATTER
DISHA|Exercise physics|58 Videos

Similar Questions

Explore conceptually related problems

Two long, straight, parallel wires are 1.00m apart (as shown in Fig). The upper wire carries a current I_1 of 6.00A into the plane of the paper. What is the magnitude of the net field at Q?

Two long, straight, parallel wires are 1.00m apart (as shown in Fig). The upper wire carries a current I_1 of 6.00A into the plane of the paper. What is the magnitude of the net field at S?

A wire carries current toward the north. In the region beneath this wire, What is the direction of the magnetic field due to the current ?

A straight wire, of length L, carrying a current I, stays suspended horizontally in mid air in a region where there is a uniform magnetic field vecB . The linear mass density of the wire is lambda . Obtain the magnetic of this magnetic field.

A straight wire carrying a current 10 A is bent into a semicircular arc of radius 5 cm . The magnitude of magnetic field at the center is

A horizontal wire of length 0.5m carries a current of 5A . If the mass of the wire is 10mg , the minimum magnetic field required to support the weight of the wire is (g=10m//g^(2))

A straight wire of mass 400 g and length 2m carries a current of 2A. It is suspended in mid air by a uniform horizontal field B. What is the magnitude of the magnetic field ?

A long, straight wire of radius R carries a current distributed uniformly over its cross section. The magnitude of the magnetic field is

A copper wire of diameter 1.6 mm carries a current of 20A. Find the maximum magnitude of the magnetic field (vec B)due to this current.

DISHA-MAGNETIC EFFECTS OF CURRENT-physics

An alpha-particle is describing a circle of radius 0.45 m in a field o...
Text Solution
|
An electron beam passes through a magnitic field of 2xx10^(-3) "weber"...
Text Solution
|
A straight horizontal copper wire carries a current i = 30 A. The line...
Text Solution
|
A 1m long conducting wire is lying at right angles to the magnetic fie...
Text Solution
|
In the fig the two parallel wires PQ and ST are at 30 cm apart. The cu...
Text Solution
|
A beam of protons enters a uniform magnetic field of 0.3 tesla with a ...
Text Solution
|
A charge particles q enters in a magnetic field vec(B)=y hat(i) + x ha...
Text Solution
|
A charge particles q enters in a magnetic field vec(B)=y hat(i) + x ha...
Text Solution
|
A charge particles q enters in a magnetic field vec(B)=y hat(i) + x ha...
Text Solution
|
Statement -1 : If two long wires, hanging freely are connected to a ba...
Text Solution
|
Statement - 1 : For a charged particle to pass through a uniform elect...
Text Solution
|
Statement - 1 : If an electron is not deflected while passing through ...
Text Solution
|
A circular coil of radius 4 cm and of 20 turns carries a current of 3 ...
Text Solution
|
A circular coil of radius 4 cm has 50 turns. In this coil a current of...
Text Solution
|
The deflection in a moving coil galvanometer is
Text Solution
|
A moving coil galvanometer has N numbr of turns in a coil of effective...
Text Solution
|
A current carrying loop is free to turn in a uniform magnetic field.Th...
Text Solution
|
A 100 turns coil shown in figure carries a current of 2 amp in a magne...
Text Solution
|
A rectangular coil 20cmxx20cm has 100 turns and carries a current of 1...
Text Solution
|
A circular loop of area 0.01 m^(2) carrying a current of 10 A, is held...
Text Solution
|