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Payal Ahlawat 6 years, 11 months ago
Yogita Ingle 6 years, 11 months ago
The dyne is a unit of force specified in the centimetre-gram-second (cgs) system of units, symbol "dyn". One dyne is equal to exactly 10-5 newtons. Further, the dyne can be defined as "the force required to accelerate a mass of one gram at a rate of one centimetre per second squared."
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Meghna Thapar 5 years, 6 months ago
A circle is constructed of a uniform wire of resistance of 2 ohm per cm and is connected in a circuit such that it offers maximum resistance. fins the maximum resistance. (take radius of the circle as 7 cm).
The radius of the wire is given as 7 cm. The length of the wire is the circumference of the circle.
So,
Length = 2π r = 2 x 227×7= 44 cmNow, Resistance per unit length = 2 ohmSo, total resistance = resistance per unit length × length = 44 ×2=88 ohm
The resistance will be maximum if it is connected in series.
Thus, the maximum resistance is 88 ohm.
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Gaurav Seth 6 years, 11 months ago
CFC stands for Chlorofluorocarbon. As the name suggests, it consists of chlorine, fluorine, and carbon. They are mainly used as refrigerants in cooling systems. As it is released in the atmosphere, it reacts with light and produces the chlorine (Cl-) radical. This chlorine radical, catalyzes the Ozone (O3) present in the atmosphere, and breaks down ozone into oxygen molecule. Hence, ozone depletion occurs
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Aafiya Zohra 6 years, 11 months ago
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