Why JK flip-flops are called Jump to kill flip-flops?

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ec navneet

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Please , if anyone can answer to my these 3 questions :-

1.Why JK flip-flops are called Jump to kill ffs?
2.What is special in referring "solid state switching devices(eg.JFET etc.)" afterall we all know that these are ofcourse in a "solid state"?
3.How the physical size of inductors or capacitors depend on the frequency at which they operate ?

Thanking You in advance ............
 

Why JK flip-flops

JK stands for Jack Kilby
http://en.wikipedia.org/wiki/Flip-flop_(electronics)

The set and reset inputs were given the symbols "J" and "K" after one of the engineers that helped design the J-K flip-flop, Jack Kilby. Kilby later won the Nobel Prize in Physics, that has some creditation to his discovery
 

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