12th Class Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Case Based (MCQs) - Current Electricity

  • question_answer
    Wire wound resistors are available in very __ ohmic high precision values with ____ power rating.

    A) High, high

    B) Low, low

    C) High, Low

    D) Low, high

    Correct Answer: D

    Solution :

    Option [d] is correct Explanation: Wirewound Resistors are generally only available in very low ohmic high precision values. They are able to handle much higher electrical currents than other resistors of the same ohmic value with much excessive power ratings. These high power resistors are moulded into an aluminium heat sink body with fins attached to increase their overall surface area to promote heat loss and cooling.


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