1800-150-456-789
FlagBACK
Flag General Physics> good question...
question mark

A metal wire of linear mass density of 9.8 g/m is stretched with a tension of 10 kg-wt between two rigid supports 1 metre apart. The wire passes at its middle point between the poles of a permanent magnet, and it vibrates in resonance when carrying an alternating current of frequency n. The frequency n of the alternating source is

A Sreekhar , 15 Years ago
Grade 12
anser 3 Answers
anuj kumar sharma

Last Activity: 9 Years ago

the wire will vibrate with the same frequency as that of source .this can be considered as anexample of forced vibration.
T=10*9.8N=98N
M=9.8*10^-3Kg/m
Frequencyof wire,f=1/2Lroot(T/M)
                          f=1/2*1root(98/9.8*10^-3)
                           f=50Hz is the Answer.

Adeeba

Last Activity: 5 Years ago

f=1/2l√(T/m)As for1/2(1/2)/

Adeeba

Last Activity: 5 Years ago

The wire vibrate with the same frequency as that of source
f=1/2l√(T/m)
As the wire is at the middle point l=1/2
f=(2/2)/√(10*9.8)/9.8*10^-3
f=100

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

Other Related Questions on General Physics

question mark
moment of inertia of a equilateral triangle about an axis passing through centre and perppendicular to the plane
General Physics
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction ofthe earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate thedeviation (a) at 40 latitude, (b) at the poles, and (c) at the equator
General Physics
1 Answer Available

Last Activity: 2 Year ago(s)

question mark
The length of a massless rod is measured using vernier callipers having 10 vernier scale divisions and least count of 0.1 mm. Two masses 1.00 ± 0.01 kg and 4.00 ± 0.02 kg are attached to its ends. If reading of vernier scale is 5 divisions coinciding with 1.3 cm, what is the % error in locating centre of mass from lighter mass
General Physics
2 Answer Available

Last Activity: 2 Year ago(s)

question mark
A block is kept on x-y plane at a point (2m,3m). It is pushed with a force of magnitude 10 Ntowards point (5m,7m). The force can be represented as?
General Physics
0 Answer Available

Last Activity: 2 Year ago(s)

question mark
The phase of particle at t is 70°and another particle is at t is 790° what is wavelength if the distance between two particles is1 m
General Physics
0 Answer Available

Last Activity: 2 Year ago(s)