Physics, asked by aparna130963, 11 months ago

help plz fast. who will answer first will be Mark as brain list ​

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Answered by vanshkumar68
2

Answer:

  1.   H = I2rt

    1000 = I2*1000*20

     1000 = i2 *20000

      1000/20000 = I2

       1/20 = I2

     √1/20= 1/4.47

V=IR

V= 1/4.47*1000

V= 227.71

PLS MARK ME

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