Electronic Principles Questions

• Which is the most widely used semiconductor?
• Which one of the following statements is true?
• How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?
• Current can flow through a normally open push button switch as long as:
• The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current?
• An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?
• When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:
• A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
• An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current?
• Doubling the operating frequency of a purely capacitive circuit:
• What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm?
• A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?
• Doubling the diameter of the coil in an inductor:
• Which one of the following statements is true?
• A device that converts chemical energy to electrical energy is called a:
• The core of an electromagnet is said to be in saturation when:
• Which one of the following statements is true?
• As the temperature increases, the current gain
• If the base supply voltage increases, the Q point moves
• Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?