PLS ANS MY QUES ITS UEGENT
Answers
Answer:
1. As the blade rotates they experience frictional forces as they rub against the air, this knocks electrons around causing the blades to build a net charge. the charged dust particles then stick to the charged areas of the blade.
2. to protect the gold leaves from drafts of air they are typically enclosed in a glass case.
3. because when current flows through a conductor such as copper wire, all of those electrons that were previously moving about randomly get together and start moving in the same direction. earthing is used to protect you from an electric shock.
4. So that the socket is not live when it is switched off.
5. same as that of 4th
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3)).The current flows from one point of the circuit, through ground, then back into the circuit. ... It can't flow to ground, because there is nowhere for it to flow. Earthing is used to protect you from an electric shock. It does this by providing a path for a fault current to flow to earth.
1)).As the blades rotate, they experience frictional forces as they `rub' against the air; this knocks electrons around, causing the blades to build up a net charge. The charged dust particles then stick to the charged areas of the blades. ... "So the dust doesn't collect on the blades simply by `falling' or landing on them.
2)).A gold-leaf type electroscope is a device used to detect the presence of electric charge on a body and its relative amount. ... To protect the gold leaves from drafts of air they are typically enclosed in a glass bottle or glass-walled chamber, usually open at the bottom and mounted over a conductive base.
4)).A switch in the electrical circuit is always connected to the live wire so that the socket/appliance is not live when it is switched off. ... The thicker the wire the more current is needed to melt it and the higher the 'rating' of the fuse.
[ hey 4 and 5 are same questions just language is different for asking this question.]
Q()under the Universal salt iodization program in india the sale of non iodized salt for human consumption is banned. why is it so important to eat iodised salt?
ans.) Iodine deficiency is a primary cause of preventable mental retardation and brain damage. It also increases the chance of infant mortality, miscarriage and stillbirth. India's Minister for Health and Family Welfare Dr. ... Ramadoss announces the renewal of a ban on non-iodized salt for human consumption in India.
point be NOTED.
Iodised salt (also spelled iodized salt) is table salt mixed with a minute amount of various salts of the element iodine. The ingestion of iodine prevents iodine deficiency. Worldwide, iodine deficiency affects about two billion people and is the leading preventable cause of intellectual and developmental disabilities.
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