Question

a sonometer wire 76 cm long is mantained under tension by 4 kg mass and a current is placed through the wire. a horse shoe magnet is placed with its poles above and below the wire at its midpoint. the resulting forces set the wire in resonant vibration. if the density of the materials is 8800 kg per cubic metre and diameter is 1 mm, find frequency of alternating current

Answer 1

Answer:

use formula

freq of a. c. = (1/ 4L ) x sq. root. ( tension/mass density)