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Q. Write a note on emitter follower?
The emitter follower (EF) configuration is shown
The EF amp has a voltage gain of approximately one. The point is that an EF has a very low output resistance and a high input resistance. It is therefore used as a buffer which is placed in between a high resistance source and a low resistance load, thereby providing the necessary current to the load without sagging the voltage.
A coil of inductance 0.04 H and resistance 10? is connected to a 120 V, d.c. supply. Verify (a) The final value of current (b) The time constant of the circuit (c)
For a discrete time unit step input x(kT), the output y(kT) of a system is shown below, Part (a) Obtain the Z-transform of the output signal y(kT). Part (b) F
Ceramics are good (A) Insulators. (B) Conductors. (C) Superconductors. (D) Semiconductors. Ans: Ceramics are good insulators.
Magnetic materials
Q. Dynamic Response of Control Systems? The existence of transients (and associated oscillations) is a characteristic of systems that possess energy-storage elements and that a
What do you understand by DRAM and its refreshing? Dynamic RAM (DRAM) is fundamentally the same as SRAM, but this retains data for only 2 or 4 ms on an internal capacitor. But
Control Charts The control chart is the fundamental tool of Statistical Quality Control (SQC). It denotes the general cause variation in which is built into a system therefore
Defective Metering and Meter Reading Errors Defective Metering Tampered, slow running, stalled, damaged meters are a cause of huge losses to the utility. The electromecha
Describe the three main sources of power dissipation in CMOS logic. Hence calculate the power dissipated in a CMOS ASIC of 40,000 gates operating at a frequency of 133MHz with a s
how does the increase in the kinetic energy of a proton compare with the increase in kinetic energy of the alpha particle in part?
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