B-tech assistance

whT IS IMPULSE RESPONCE?????????///

why do we use & oparetor in scanf()????/

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if binary is the nearest to computer soul each day we are moving far away from computers soul because of the computer languages how many layer of abstraction is there in between heart of a computer and the programing interface provided by the high level computer languages???????????

ALL THE SOLUTION OF THE QUESTIONS TILL I HAVE GIVEN WILL BE UPLOADED SOON STAYED TUNED PLEASE PRACTICE THIS THIS WILL HELP YOU IN ALL KIND OF EXAMS FROM IES TO GATE.......(:

A SOURCE V(t)=C cos (100pi t) has an internal impedance of (4+j3)ohm .if a purely resistive load is connected to this source has to extract maximum power out of the source,its value in ohm should be?????????(gate)

QUESTION-A SOURCE OF ANGULAR FREQUENCY 1 RAD/SEC HAS A SOURCE IMPEDANCE CONSISTING OF 1 OHM RESISTANCE AND 1 HENRY INDUCTANCE IN SERIES.THE LOAD THAT WILL OBTAIN MAXIMUM POWER TRANSFER IS
1.OHM RESISTANCE
2.1 FARAD INDUCTANCE
3.1 OHM RESISTANCE IN SERIES WITH 1 F CAPACITANCE
4.1FARD INDUCTANCE IN SERIES WITH 1 OHM RESISTANCE....(GATE)

QUESTION.......... A SERIES RLC CIRCUIT HAS A RESONANCE FREQUENCY OF 1 KHZ AND QUALITY FACTOR Q=100.IF EACH OF R,L,C IS DOUBLED FROM ITS ORIGINAL VALUE,THE NEW QUALITY FACTOR IS????????(GATE)

QUESTION----------CURRENT THROUGH A 10 OHM RESISTOR IS i(t)=3 +4 sin(300t+45) + 4 sin(100t+60) amp.THE RMS VALUE OF CURRENT AND POWER IS ??????????(GATE)

QUESTION----IN A HIGH Q CIRCUIT,THE CURRENT PEAKS AT A FREQUENCY???????????? (gate) 1.RESONANCE FREQUENCY 2.GREATER THAN RESONANCE 3.LESS THAN RESONANCE FREQUENCY 4.NONE OF ABOVE

question ...TWELVE I OHM RESISTOR ARE USED AS EDGE TO FORM A CUBE.THE RESISTANCE BETWEEN TWO DIAGONALLY OPPOSITE CORNER OF CUBE IS?????????????(GATE)

question---why value of power factor cant be more than 1??????????