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zlopas [31]
3 years ago
13

What is the function of a fixed resistor?

Engineering
1 answer:
agasfer [191]3 years ago
8 0

Answer:

  add resistance to a circuit

Explanation:

It depends on the design in which it is incorporated. A fixed resistor has many uses, including, but not limited to ...

  • dropping voltage
  • limiting current
  • contributing to a time delay
  • adjusting frequency response
  • eliminating (or creating) signal reflections
  • acting as a fuse
  • calibrating or trimming a response
  • providing protection against electrical shock or ESD
  • acting as a reference when measuring variable resistors
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Define the following terms: data, database, DBMS, database system, database catalog, program-data independence, user view, DBA,
nalin [4]

Answer:

data - Any form of value in a column of a table in a relational database.

DBMS - Short for Database management system, which is a software that can be used to create, manipulate and view databases, e.g. MS SQL Server.

database system - Same as DBMS.

database catalog - Place where the metadata of a Database including its tables, users etc. exists, e.g. date created, size, number of columns etc. Also known as Data Dictionary.

program-data independence - Program-data independence refers to the design of keeping different levels of database (external, logical and physical) separate and loosely coupled from each other, for easier maintenance or modification work.

DBA - Short for Database Administrator, person responsible for maintaining the database. Its main responsibility is to keep the data clean and safe i.e. data doesn't contain wrong or invalid data, and is safe from viruses and is backed up.

end user - Anyone who is not directly interacting with a database, but through some software, like website or mobile application.

persistent object - An object of a class in a program, that interacts with the underlying database and is responsible for manipulating the database, the program is connected to.

transaction-processing system - A transaction process system is part of a software, responsible for making sure critical business transactions, like crediting or debiting money, either goes through cleanly or doesn't at all.

6 0
3 years ago
List all information for each order item. Include an item total, which can be calculated by multiplying the Quantity and Paid ea
Zigmanuir [339]

Answer:

#include<iostream>

Using namespace std;

int main()

{

int n, qty;

double price, amount;

cout<<"Number of items ";

cin>>n;

cout<<"ITEM<<"\t"<<"QUANTITY"<<"\t"<<"PRICE"<<"\t"<<"ITEM TOTAL";

for(int i= 1; I<= n; i++)

{

cin>>qty;

cin>>price;

amount = qty * price;

cout<<i<<"\t "<<qty<<"\t"<<price<<"\t"<<amount;

}

}

Explanation

The above program is written in C++ programming language

5 variables are declared and used in the program

n is declared as an integer to represent the total number of items

qty is declared as integer to represent the total quantity of each item

price is declared as double to represent the amount of each individual item

amount is declared as double to represent the total amount of an item; it is gotten by qty * price

i is declared as integer to iterated between each items

The amount of each item is calculated within the iteration and also printed immediately

3 0
3 years ago
What is the proper distance from the feet of a straight ladder to the wall?
blondinia [14]

Answer:

One Foot

Explanation:

The general rule is to maintain a distance of one foot per four feet of height.

3 0
3 years ago
The 150 mm thick wall of a gas fired furnace is constructed of fireclay brick (k=1.5 W/m.K) , tho=2600 kg/m3, and cp=1000 J/kg.K
pashok25 [27]

Answer:

I am thick but I dont know the anwser

8 0
2 years ago
A tank contains initially 2500 liters of 50% solution. Water enters the tank at the rate of 25 iters per minute and the solution
sergejj [24]

Answer:

Percentage of solution=32. 96%

Explanation:

Given that initially tank have 50% solution.It means that amount of solution=0.5 x 2500 =1250 lts

Lets take the amount of solution at time t = A

So

\dfrac{dA}{dt}=rate\ in\ solution -rate\ out\ solution

\dfrac{dA}{dt}=concentration\times rate\ in\ of\ water -concentration\times rate\ out\ of\ water

\dfrac{dA}{dt}=0\times 25-\dfrac{A}{2500}\times 50

\dfrac{dA}{dt}=-\dfrac{A}{50}

Now by integration

\ln A=-\dfrac{1}{50}t+C

Where C is the constant

Given that at t=0 ,A=1250

So C=\ln 1250

\ln A=-\dfrac{1}{50}t+\ln 1250

When t=20 min

\ln A=-\dfrac{1}{50}\times 20+\ln 1250

A=837.90

So percentage of solution after 20 min

=\dfrac{1250-837.9}{1250}\times 100

Percentage of solution=32. 96%

4 0
3 years ago
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