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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. Explain about Half Duplex Transmission? Half Duplex Transmission A half-duplex channel can receive andsend, though not at the same instance. It's like a one-lane bridge w
Q. A wye-connected, three-phase, 50-Hz, six-pole synchronous alternator develops a voltage of 1000 V rms between the lines when the rotor dc field current is 3A. If this alternator
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Determine the Service and Backwash Rates The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rat
'Electrical drives' is a general term that is commonly used to describe both DC and AC excited motors that provide continuous rotary motion, whilst 'electrical actuators' provide l
Given the network in Figure, (a) Find the currents through resistors R 1 , R 2 , and R 3 . (b) Compute the voltage V 1 . (c) Show that the conservation of power is satisfi
what is 2 bit counter?
Guarding Against Loss in Transformers Distribution transformers are expected to convert up to 95-98% of the input power into usable output power. A distribution transformers i
Objectives After studying this unit, you should be able to: 1. Describe the consequences of passing electric current through human body, 2. State and recognise the colour
Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4
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