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     EduGorilla 
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    A square wave with 50 kHz frequency and duty cycle of 75% is obtained from the astable multivibrator shown in figure below.

    The resistances RA and RB in the circuit are, respectively

    Options :-

    1. 10.63 k and 21.2 k
    2. 21.2 k and 10.6 k
    3. 10.6 M and 21.2 M
    4. 21.2 M and 10.6 M
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