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What will happen if a glass ruler is rubbed vigorously on a woolen cloth?
Rubbing a glass ruler on a woolen cloth will create a static charge on the ruler due to the triboelectric effect, where electrons transfer between the materials. The glass ruler will become negatively charged as it gains electrons from the woolen cloth, resulting in static attraction to objects with a positive charge.
Why in winters woolen clothes make crackling sound. Explain?
The crackling sound you hear when wearing woolen clothes in winter is due to the build-up of static electricity. As you move, the friction between the wool and your other clothing or skin creates an imbalance of electrons, leading to a discharge of static electricity, which produces the crackling sound. This phenomenon is more common in dry winter weather when the air is less humid.
When a plastic rod is rubbed with a woolen cloth what happens?
When a plastic rod is rubbed with a woolen cloth, electrons are transferred from the wool to the plastic due to the friction between the two materials. This transfer of electrons creates a static charge on the plastic rod, giving it a negative charge and the wool a positive charge.
Why are woolen materials bad conductors of heat?
Ai. The reason woolen clothing has been used for millenia as an effective shield against cold is the same as wht sheep have fleece. Wool fibres are quite irregular and wiry, thus trapping a large volume of air between the fibres. Air trapped in woolen fabrics provides a very good insulator, reducing the speed of heat loss from the body to the outside air.
Can a woolen cloth be charged by friction?
Yes, woolen cloth can be charged by friction due to its ability to gain or lose electrons when rubbed against another material. This can result in a build-up of static electricity on the woolen cloth.
How do you make active voice of the poor have been given woolen clothes?
active voice of "the poor have been given woolen clothes"
How do woolen clothes keep us warm in winters?
Woolen clothes keeps people warm in winters because the air gets trapped inside. People have been wearing woolen clothing for years in the winter months.
How woolen clothes keeps us warm in winter?
Woolen clothes keeps people warm in winters because the air gets trapped inside. People have been wearing woolen clothing for years in the winter months.
What is name of insects which eaten the woolen clothes?
Moths
Woolen Act of 1699 declared what?
wool produced in the colonies could only be Britain. Colonists could only wear woolen clothes. Colonists could not were woolen clothes. Wool produced in the colonies could be freely exported to any county.
What make woollen clothes warm?
The woolen fibers duhhh
What is means of salai?
its a big needle and is use to make woolen clothes
What do you understand by shearing when is it done?
for making woolen clothes from the wool of the sheep
Why people wear woolen clothes in winters than cotton?
It's warmer
Why do woolen clothes keep the body warmer during winter than cotoon clothes?
Because wool clothes are heavier, thus making them warmer.
What advantages cotton have over synthetic clothes?
Cotton allows the sweat to evaporate.As we sweat profusely during summer cotton allows rapid evaporation the sweat evaporates using body heat leaving a cooling effect .woolen clothes have large spaces in between them which takes in a large amount of air . as air is a bad conductor of heat , it doesn 't allow the body heat to evaporate and we feel warm in woolen clothes
Why woolen clothes keep us warm?
Its just because woolen clothes have fibres and between those fibres air is trapped which reduces heat loss. Air reduces heat loss because it is an insulator or poor conductor of heat.
