Electromagnet for Sonometer

In the sonometer experiment, we will first set up the sonometer with the given wire and weights. Then, we will try to match the vibrating tones of a tuning fork and the wire, at which point they will resonate together. To do this, we will place a piece of paper on the taut wire and note at which length the wire vibrates so much that it throws off the paper.

Equipment and Material

• A sonometer apparatus of good quality
• A given steel of nichrome wire ‒ about 1.5 meters of it. They are generally quite thin, like 0.5 mm. Guitar wires, obviously, produce the best results.
• A weight hanger suitable to hold up to 2 kg
• A set of weights from 100gm to 1 kg
• A  set of tuning forks with known frequencies
• A rubber pad to hit the tuning fork with
• Some pieces of paper