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neonofarm [45]
2 years ago
9

A single-phase transformer circuit feeds a motor and lighting load of 50 kilowatts. At a power factor of .8, the KVA rating of t

he step down transformer would be
Engineering
1 answer:
AveGali [126]2 years ago
3 0

The KVA rating of the step down transformer at the given power factor would be 62.5 kVA.

<h3>What is power factor of a transformer?</h3>

Power factor (PF) is the ratio of working power, measured in kilowatts (kW), to apparent power, measured in kilovolt amperes (kVA).

PF = working power / apparent power

PF =  kW/kVA

kVA = kW/PF

kVA = 50 kW/0.8

kVA = 62.5 kVA

Thus, the KVA rating of the step down transformer at the given power factor would be 62.5 kVA.

Learn more about power factor here: brainly.com/question/7956945

#SPJ1

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Java Programming: Loops and Conditionals
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Answer:

  1. import java.util.Scanner;
  2. import java.util.Random;
  3. public class Main {
  4.    public static void main(String[] args) {
  5.        Scanner input = new Scanner(System.in);
  6.        Random rand = new Random();
  7.        System.out.print("Enter number of questions you wish to practice: ");
  8.        int n = input.nextInt();
  9.        int i = 1;
  10.        while(i <= n){
  11.            int num1 = 1 + rand.nextInt(10);
  12.            int num2 = 1 + rand.nextInt(10);
  13.            int answer = num1 * num2;
  14.            System.out.print("Question " + i + ": " + num1 + " x " + num2 + " = ");
  15.            int response = input.nextInt();
  16.            if(response == answer){
  17.                System.out.println("Correct answer!");
  18.            }
  19.            else{
  20.                System.out.println("Wrong answer. It should be " + answer);
  21.            }
  22.            i++;
  23.        }
  24.    }
  25. }

Explanation:

Firstly, we import Scanner and Random classes (Line 1-2) as we need to get user input for number of questions and generate random number in each question.

Next, create a Scanner and Random object (Line 7-8).  Prompt user to input number of question and get the input using the Scanner object (Line 10-11).

Next create a while loop and set the condition to loop for n number of times (based on number of questions) (Line 14). In the loop, use Random object nextInt method to generate two integers between 1 -10 (Line 15-16). Prompt user to input an answer using the Scanner object (Line 18-19). If the response is matched with answer print a correct message (Line 21-22) other wise inform user they write a wrong answer and show the correct answer (Line 24-25).

8 0
4 years ago
A cylindrical specimen of a metal alloy 48.8 mm long and 9.09 mm in diameter is stressed in tension. A true stress of 327 MPa ca
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Answer:

The true stress necessary to plastically elongate the specimen is 406.69MPa

Explanation:

The Explanation or Solving is on the attached document.

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