Question

1. why does user use rough powder on their hands during certain sports?

2. define electrical conductivity​

Answer 1

Question ⤵️

why does user use rough powder on their hands during certain sports?

Answer ⤵️

gymnasts use coarse substances as they need grip. so friction is increased by adding a coarse substance.

wrestlers use it to prevent their hands from slipping over their opponent's body. The powder increases the friction.

Question ⤵️

Define electrical conductivity

Answer ⤵️

Electric current is the flow of electrons though a material, and electrical conductivity is the ability of electric current to flow through a material. Conductors, such as copper, other metals, and water, have a high electrical conductivity and therefore can easily have electrons pass through them.

hope you find it helpful

Answer 2

Answer:

1.Gymnasts use coarse substances as they need grip. so friction is increased by adding a coarse substance.

2.Conductivity is the measure of the ease at which an electric charge or heat can pass through a material. A conductor is a material which gives very little resistance to the flow of an electric current or thermal energy. Materials are classified as metals, semiconductors, and insulators.