Context and question: In a FET, the drain-to-source current flows via a conducting channel that connects the source region to the drain region. The conductivity is varied by the electric field that is produced when a voltage is applied between the gate and source terminals; hence the current flowing between the drain and source is controlled by the voltage applied between the gate and source. As the gatesource voltage (VGS) is increased, the drainsource current (IDS) increases exponentially for VGS below threshold, and then at a roughly quadratic rate (IGS (VGS VT)2) (where VT is the threshold voltage at which drain current begins) in the "space-charge-limited" region above threshold. A quadratic behavior is not observed in modern devices, for example, at the 65 nm technology node.
Why is quadratic behavior not observed in modern devices?
Answer: unanswerable
Context and question: While Nasser was increasingly criticized by Egyptian intellectuals following the Six-Day War and his death in 1970, the general public was persistently sympathetic both during and after Nasser's life. According to political scientist Mahmoud Hamad, writing in 2008, "nostalgia for Nasser is easily sensed in Egypt and all Arab countries today". General malaise in Egyptian society, particularly during the Mubarak era, augmented nostalgia for Nasser's presidency, which increasingly became associated with the ideals of national purpose, hope, social cohesion, and vibrant culture.
What event generated criticism of Nasser from Egypt's elite?
Answer: Six-Day War
Context and question: Capacitors are connected in parallel with the power circuits of most electronic devices and larger systems (such as factories) to shunt away and conceal current fluctuations from the primary power source to provide a "clean" power supply for signal or control circuits. Audio equipment, for example, uses several capacitors in this way, to shunt away power line hum before it gets into the signal circuitry. The capacitors act as a local reserve for the DC power source, and bypass AC currents from the power supply. This is used in car audio applications, when a stiffening capacitor compensates for the inductance and resistance of the leads to the lead-acid car battery.
What is another value a stiffening capacitor accounts for when used in for car audio purposes?
Answer:
resistance