Write down the overall general expression for the conductivity of a material taking into consideration the different types of charge carriers. Identify all the parameters in the expression:

Use the overall expression for conductivity to state the conductivity of Cr₂O₃–Li₂O-NiO composite material taking into consideration all the charge carriers associated with it.

How do you prove that: (a) holes really exist, (b) holes have a positive charge, (c) Holes have an effective mass?

Zinc, a divalent metal, was measured to have a positive Hall coefficient. Explain the reason (theory) behind this fact.

PART 1: Design a program (using only native MIPS instructions, no pseudo instructions) that will prompt user to enter three decimal numbers. Each decimal number will not exceed six digits The program can't ask user how many digits will be entered. Both numbers must be stored in memory as NULL terminated strings. The first number must be stored at the memory address 0x10000000. The second number must be stored in the memory 0x10000008. The third number must be stored at the memory 0x10000010. The user may enter a comma(e.g 123,456) when entering the numbers, but not required. If a comma is entered, it should not be stored as part of the string.

PART 2: write a MIPS assemlby language subroutine called sum that accepts arguments in $a0 and $a1. The arguments are the address of the two NULL terminated strings. The subroutine should convert each of the two strings to intgers, and return the sun in $v0. Note that the strings must NOT be modified by the routine! Your subroutine must adhere to the MIPS software conventions.

THE TWO PARTS MUST BE SEPERATED BY:

#_CUT_HERE

10) A continuous-time system is described by the following relation, y(t) = (cos 3t) x (t) where y(t) is the output of the system and x(t) is the input to the system. D

etermine by sufficient explanation whether the system is: a) Stable, b) Memoryless, c) Causal, d) Time invariant, e) Linear.

competence management systems and documentation used in signalling
describe the role of the institute of rail signal engineering

Write the Verilog code and test bench for the following circuits:

- Mealy State machine design for a Serial Adder Circuit

- Moore State Machine design for a Serial Adder Circuit

Evaluate ??? ?.???? where ?? ? is an Electric field which is given as ?? ? = ?3????3??2???? ??? + 6??3??2?????? ??? ? 8??2??2??2???? ??? , for a surface bound by a cuboidal shape having dimensions, ?2 ? ?? ? 0; 1 ? ?? ? 3; 0? ?? ? 4

The potential challenges of utility PV investment within a restructured electricity industry

Your employer has asked you to design a digital, programmable guitar effects pedal. The pedal
processes audio from an electric guitar to change the way it sounds. The user can configure
the pedal using software on a PC to download a new configuration to the pedal. You plan to
market this as a high-quality product for expert musicians. You expect to sell a few thousand
units each year for around $600 dollars each.
What kind of part (or parts) would you use to build the major digital parts of this system?
(For example e.g. \an FPGA", or \an embedded PC"...)

plz answer it wth all 3 reasons with proper discription

A firm is looking to lease improved high-speed data transmission lines between two remote locations from a service provider. Currently they transfer files with an average size of 100MB (megabytes) on a T1 line rated at 1.5 Mbps (megabytes per second) and it takes 9.4 minutes to transfer this file. It is estimated that in an 8-hour day, this data transfer happens 2 times per day each for 20 employees in a certain group and that each employee makes (including benefits) on average $100,000 per year for a 236-day work year [365-day year – 104 days for weekends – 10 holidays – 15 days (3 weeks vacation)]. If they go to higher speed transmission lines at 10 Mbps, how much in total ($$ savings) would this add to the total productivity of the employees in this group?

a. In an IPv4 environment, if a host on a LAN is about to send an IP packet to another host on the same LAN, how does it know the MAC address of the interface card of the destination host? What is the protocol which is used to obtain the MAC address?

b. If a host is moved to another LAN, connected to a different router, will its MAC address be the same? Explain why.

Discuss the problem of IPv4 Address exhaustion and the measures that were taken to mitigate that issue.

Discuss the problem of IPv4 Address exhaustion and the measures that were taken to mitigate that issue.