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Physics Test 15...

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  • Question 1
    4 / -1

    Two identical heaters rated 220 volt -1000 watt are placed in parallel with each other across 220 volt line; then the combined power is

  • Question 2
    4 / -1

    The thermo-emf of a thermocouple varies with the temperature θ of the hot junction as E = aθ + bθ 2 in volts ,where the ratio a/b is 7000C. If the cold junction is kept at 00C, what is the neutral temperature?

  • Question 3
    4 / -1

    A strip of copper and another of germanium are cooled from room temperature to 80 K. The resistance of :

  • Question 4
    4 / -1

    Sum of the two binary numbers (100010)2 and (11011)2 is

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