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Old Tuesday, January 14, 2014
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1) P=V.I
Where Volt is the unit of Voltage/P.D
Current's Unit as ampere, Imtiaz Shahid wali book mein maybe mistake hai, coz Coulomb is unit of electric charge.
2. X-rays have the shortest wavelength, (probably) thats why they are used in scans. Order from shortest: X-ray>Ultraviolet>Infra>Radio
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