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Physics Test 68...

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  • Question 1
    4 / -1

    Two bulbs of 500 watt and 200 watt are manufactured to operate on 220 volt line. The ratio of heat produced in 500 watt and 200 watt, in two cases, when first they are joined in series and secondly in parallel, will be :-

  • Question 2
    4 / -1

    The resistance of a wire is 10Ω. Its length is increased by 10% by stretching. The new resistance will now be :-

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