The equivalent resistance of series and parallel connections of two resistances are given by the formula: (a) R 1 = r 1 + r 2 (Series) (b) R 2 = (r 1 * r 2 ) / (r 1 + r 2 ) (Parallel) Using a switch case statement, write a program to enter the value of r 1 and r 2 . Calculate and display the equivalent resistances accordingly.

Computer Applications

The equivalent resistance of series and parallel connections of two resistances are given by the formula:
(a) R₁ = r₁ + r₂ (Series)
(b) R₂ = (r₁ * r₂) / (r₁ + r₂) (Parallel)
Using a switch case statement, write a program to enter the value of r₁ and r₂. Calculate and display the equivalent resistances accordingly.

Java

Java Conditional Stmts

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Answer

import java.util.Scanner;

public class KboatResistance
{
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        System.out.println("1. Series");
        System.out.println("2. Parallel");
        
        System.out.print("Enter your choice: ");
        int choice = in.nextInt();
        boolean isChoiceValid = true;
        
        System.out.print("Enter r1: ");
        double r1 = in.nextDouble();
        System.out.print("Enter r2: ");
        double r2 = in.nextDouble();
        double eqr = 0.0; 
        
        switch (choice) {
            case 1:
                eqr = r1 + r2;
                break;
            case 2:
                eqr = (r1 * r2) / (r1 + r2);
                break;
            default:
                isChoiceValid = false;
                System.out.println("Incorrect choice");
                break;
        }
        
        if (isChoiceValid)
            System.out.println("Equivalent resistance = " + eqr);
    }
}