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#### Previous questions of dbms

#### Design an asynchronous 3-bit up-down counter using J-k flip-flop which counts up when external signal M=1 and counts down when M=0

#### Write down the expression for the intensity of light due to Fraunhofer diffraction in a transmission grating and hence find the condition for secondary minima in the interference pattern.

#### Show that the total energy of an oscillator exhibiting simple harmonic motion is constant. Show that in an LC circuit charge q undergoes an Simple harmonic oscillation with time.

#### The following specifications are given for the dual input, balanced-output differential amplifier of Fig. 1(b): R_{c} = 2.2k*Omega R_{E} = 4.7k*Omega R S1 =R S2 = 50Omega ,+V CC =10V,-V EE = 10V. beta dc =100 and V theta*E =0.715V. Determine the operating points of the two
transistors