Question

10 turns of wire are closely wound around a pencil.when measured using a scale . The length of total turns is obtained as 25mm. A.what is the thickness of the wire B.express the thickness in centimetre

Answer 1

you can take help with the photo hope it helps

Answer 2

A) The thickness of the wire = 2.5mm

B) Thickness in centimeters = 0.25cm

Given,

Number of turns of wire = 10

Length of total turns of wire = 25mm

We know that,

$thickness = \frac{length of turns}{Numberof turns}$

⇒ $thickness=\frac{25mm}{10}$

∴ $thickness = 2.5mm$

Thickness in centimeters is given as,

$thickness = \frac{length in mm}{10}$

$thickness=\frac{2.5mm}{10}$

Therefore,

$thickness = 0.25cm$.

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