A manometer wire of lenght 60 cm is maintained under a tension of value 20V and an a.c is passed through the wire. If the density of the wire is 4000kgm^(−3) and it diamerter is 2mm. Calculate the frequency of the a.c


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Question Number 10639 by Saham last updated on 21/Feb/17

$A manometer wire of lenght 60 cm is maintained under$ $a tension of value 20 V and an a . c is passed through$ $the wire . If the density of the wire is {4000 kgm}^{- 3} and it$ $diamerter is 2 mm . Calculate the frequency of the a . c$
Commented by Saham last updated on 21/Feb/17

$please help with this too . God bless you .$
Commented by mrW1 last updated on 21/Feb/17

$a t e n s i o n o f 20 V . . . w h a t d o e s i t m e a n ?$ $a t e n s i o n i s a f o r c e, i t s u n i t s h o u l d b e$ $N e w t o n .$
Commented by Saham last updated on 21/Feb/17

$please use newton sir .$
	Answered by mrW1 last updated on 21/Feb/17

	$f = \frac{1}{2 L} \sqrt{\frac{T}{μ}}$ $μ = \frac{π d^{2} ρ}{4}$ $f - f r e q u e n c y (H z)$ $L - l e n g t h o f w i r e (m)$ $T - t e n s i o n i n w i r e (N)$ $μ - m a s s o f w i r e (k g / m)$ $d - d i a m e t e r o f w i r e (m)$ $ρ - d e n s i t y o f w i r e (k g / m^{3})$ $\Rightarrow f = \frac{1}{d L} \sqrt{\frac{T}{π ρ}} = \frac{1}{0.002 \times 0.6} \sqrt{\frac{20}{4000 π}} = 33 H z$ $i^{'} m n o t s u r e i f t h i s i s t h e r i g h t a n s w e r$ $t o y o u r q u e s t i o n .$
	Commented by Saham last updated on 21/Feb/17

	$Thank you sir . God bless you .$
	Commented by Saham last updated on 21/Feb/17

	$i will confirm$
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