A piece of 17 cm long wire is to be wound around a wooden dowel, the diameter of which is of a centimeter.

Find the possible number of turns with explanation.

Total length of the wire is 17 cm

Radius of the wooden dowel,

Length of one turn of wire is equal to the circumference of wooden dowel.

So,

  • 0

length of one turn of wire = circumfereance of wooden dowel = pi * d =  22/7 * 1/3 = 22/21 cm

total length of wire = 17 cm

number of turns = 17 / (22/21) = 17 * 21 / 22 = 16.2 turns approx

  • 0
What are you looking for?