In electronics, the ratio of the amplitude of the output signal produced by an amplifier to that of the input signal. In a voltage amplifier the voltage gain is the ratio of the output voltage to the input voltage; in an inverting operational amplifier (op-amp) it is equal to the ratio of the resistance of the feedback resistor to that of the input resistor.
The emblem recalls the flag of Turkey, a long-standing ally. The points of the star represent the eight Turkic tribes of Azerbaijan. Effective date: 5 February 1991.