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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 after 2 or 4 ms, the contents of the DRAM should be fully rewritten (refreshed) since the capacitors that is store logic 1 or logic 0, lose their charges. The whole content of the memory is refreshed with 256 reads in a 2-to-4 ms interval. Also refreshing occurs throughout a write, a read or a particular refresh cycle.
Q. For a part of the network shown in Figure, given that i 1 = 4A; i 3 (t) = 5e -t , and i 4 (t) = 10 cos 2t, find v 1 , v 2 , v 3 , v 4 , i 2 , and i 5 .
Q. Determine the Thevenin resistance viewed from terminals A-B of the circuit of Figure by setting independent sources to be zero and applying a test voltage at terminals A-B.
Q A handbook lists the 60-Hz resistance at 50°C of a 900-kcmil aluminumconductor as 0.1185/mile. If four such conductors are used in parallel to form a line, determine the 60-Hz r
Encoder The encoder is a logic circuit which provides the binary code is output for each input each input signal. In other words we can say that it performs just op
Checking at Site - Testing of Meter The routine testing of meters should be carried out once in 3 years. Further, surprise checks should be conducted at the consumer's install
Q. (a) Let a unit impulse of voltage v(t) = δ(t) be applied to a series combination of R = 20 and L = 10 mH. Determine the current i(t)in the series circuit. (b) Repeat (a) for
There is often a need to produce more than one voltage from a single supply using a voltage divider. For example, the memory components of many personal computers require voltages
Q. Explain basic working of Ideal operational amplifier? The operational amplifier, known also as op amp, consists of several transistors, diodes, capacitors, and resistors. It
what is finger voltage?
Solve using data from the DC machine data sheet, using the "hot" resistance value for all calculations. Note that the value of K on the sheet is for rated (100%) field flux. Assum
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