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pantera1 [17]
3 years ago
15

A circular copper disk of diameter D=10 cm rotates at frequency =1800 rev/min about an axis through its center and at right angl

es to the disk. A uniform magnetic field B of 10,000 gauss is perpendicular to the disk. What potential difference e develops between the axis of the disk and its rim? Express your answers in terms of variables first and then plug in numbers afterword
Computers and Technology
1 answer:
MAXImum [283]3 years ago
7 0

Answer:

Induced current is 0.226 A

Explanation:

To calculate potential difference we have

E =1/2Bomega*r2 =1/2*1*1800*3.14*0.05=141.3

putting values we get

the p.d is 141.3

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ValentinkaMS [17]

Answer:

Following are the program in c++ language

#include <iostream> // header file

using namespace std;// namespace

int main() // main function

{

    int num; // variable declaration

    long int f=1; // variable declaration

   do

   {

       cout<<"Enter the Positive value:";

       cin>>num;

   } while(num<0); // i check whether   number is non negative or not

   while(num>0) // iterating over the loop

   {

       f=f*num; // calculate the factorial

       num--; // decrement the value of num by 1

   }

   cout<<" factorial is :"<<f; // display the factorial .

   return 0;

}

Output:

Enter the Positive value:7

factorial is :5040

Explanation:

Following are the description of the program .

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  • The do-while will check the enter number is nonnegative number.  
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  • Finally display the factorial .  
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