Question:
When a triode valve is used as an amplifier the phase difference between input and output voltages is
When a triode valve is used as an amplifier the phase difference between input and output voltages is
Updated On: Jul 5, 2022
- zero
- $\frac{\pi}{4}$
- $\frac{\pi}{2}$
- $\pi$
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The Correct Option is D
Solution and Explanation
Triode valve consists of a cathode, grid and anode. When current is passed in the filament by connecting it to a battery, the filament is heated and it heats up the cathode, so electrons start emitting from the cathode.
Anode plate is connected to the positive terminal of a battery. Thus, anode is positive with respect to cathode, electrons being negatively charged get attracted towards anode and a continuous plate current flows. when both grid and anode are positive maximum plate current flows.
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Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.