Question

electrical and small 25 Watt 220 volt calculate its resistance while glowing

Answer 1

We know that,

        P=VI;    P is power; V is voltage; I is current

   So, I=25W/220V

          =0.1123 A

We also know that,

        V=IR; V is voltage; I is current; R is resistance

  So, 220V=0.1123A*R

               R=1936 Ohms

Answer 2

Since,

P=VI;    P is power; V is voltage; I is current...

I=25W/220

=0.1123

And,

V=IR; V is voltage; I is current; R is resistance

220V=0.1123A*R

R=1936 Ohms

Hope it helps .....

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