Which transistor connection method is most widely utilized in practice____________arrangement?
Show answer Hide answer
Answer: A. common emitter
Explanation
The common emitter configuration provides substantial current gain and high voltage gain simultaneously. This balanced combination of high power gain makes it the most versatile and widely utilized transistor arrangement. Practical electronic circuits rely on this configuration for the vast majority of standard signal amplification tasks. Transistor configurations are categorized by which terminal is shared between input and output signal paths. Common emitter circuits offer moderate input impedance and high output impedance for effective cascading. Semiconductor physics allows this specific arrangement to deliver the highest overall power amplification efficiency.
Audio preamplifiers and radio frequency receivers use common emitter stages to boost weak signals effectively. Consumer electronics rely heavily on this transistor arrangement due to its superior overall amplification performance. Circuit designers choose common emitter stages as the default building block for multi-stage analog amplifiers. Common base arrangements provide voltage gain but lack current gain, limiting their use in general amplifiers. Common collector configurations offer voltage gain near unity and are used primarily for impedance buffering. Selecting none of the above is incorrect because the common emitter arrangement is overwhelmingly the most popular.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. A rheostat differs from a potentiometer in the sense that it_____________?
Show answer Hide answer
Answer: B. has higher wattage rating
A rheostat is typically designed with a higher wattage rating than a potentiometer because it controls current directly. Handling large electrical currents requires thicker resistive elements capable of dissipating subst...
Q2. Which type of machinery experiences heavy load fluctuations ?
Show answer Hide answer
Answer: A. Printing machine
Printing machines experience continuous and heavy load fluctuations during high speed paper feeding and printing. Variable torque demands require printing presses to utilize robust mechanical drives and motor controls. S...
Q3. Which of the following can serve as an indicator of electric intensity ?
Show answer Hide answer
Answer: B. V/A
Electric intensity, or electric field strength, measures potential difference distributed across a specific distance interval. Potential measured in volts divided by distance represented dimensionally matches the intensi...
Q4. When selecting an electric motor to drive a flour mill, which electrical specification is of minimal relevance ?
Show answer Hide answer
Answer: D. Braking
Flour mills require constant running and high starting torque for heavy milling machinery. Electric braking is generally unnecessary for their standard continuous grinding operation. Motors operate steadily without needi...
Q5. Given a 21 V source applied to a circuit where R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, with R1 in series with the parallel pair R2 and R3, what is the current through R2?
Show answer Hide answer
Answer: B. 400 mA
Calculating the parallel resistance of thirty-five and fourteen ohms yields exactly ten ohms of equivalent resistance. Adding the series resistor of five ohms gives a total circuit resistance of fifteen ohms altogether....
Q6. Which device operates on the principle of magnetic torque exerted on a current-carrying conductor in a magnetic field ?
Show answer Hide answer
Answer: D. all of the above
Galvanometers, ammeters, and voltmeters all operate based on magnetic torque exerted on current-carrying conductors inside a magnetic field. When electric current flows through a movable coil positioned within a permanen...