Sometimes, in a stringed instrument, a thick wire is wrapped by a thin wire. Why ?

It is observed in case of stringed instruments sometimes that a thick wire is wrapped by a thin wire. Give reason behind this practice.

Why are thick wires used in fuses ?

The filament of an electric bulb is made of a thin wire of :

Two solenoids have identical geometrical construction but one is made of thick wire and the other of thin wire. Which of the following quantities are different for the two solenoids?

A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break

Which in the following is a stringed Instrument ?

A high tension wire is at a high potential with respect to a wire which is well grounded called Earth wire. You must have seen such wires stretched parallel to roads. There is a high tension wire between two points A and B. 1 km apart. The distance between HT wire and earth wire is 1 m. The resisatnce of the HT (and also the earth wire) is 1 Omega//m . This wire is at a potential of 11 KV at point A w.r.t. to earth wire. and its is carrying 1 A current which returns back to the generator by through the earth wire. This wire is quite a thick wire. There is a sign board at a pole over which this wire is stretched reading DANGER, 11 KV. You might thick what would happen if one touched this wire. Will one feel a shock or not. Well ! it depends on whether the current through our body exceeds a particular valuem which we may call CRITICAL CURRENT. Why is H.T wire thick wire. Select the most appropriate option

A person looking at a mesh of crossed wires is able to see the vertical wires more distincly than the horizontal wires. Why ? How can it be corrected ?

Which has more resistance: (a) a long piece of nichrome wire or short one? (b) a thick piece of nichrome wire or a thin piece?