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     EduGorilla 
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    A semiconductor is doped with ND = (ND > > ni) and has resistance (R1). The same semiconductor is then doped with an unknown amount of NA (N A > > ND), yielding a resistance of 0.2 R1. What will be the value of NA, if = 50?

    Options :-

    1. NA = 50 ND
    2. NA = 100 ND
    3. NA = 150 ND
    4. NA = 250 ND
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