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  1. The temperature of a body falls from 50⁰C to 40⁰C in 10 minute. If the temperature
  2. In Moseley’s law √ν=a(z-b), the values of the screening constant for K-series
  3. A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
  4. A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
  5. In the middle of the depletion layer of a reverse-biased P-N junction, the