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Substitute equation (2) into (1) to give a new equation for p that involves only I and R

Re arrange (2) to make I the subject, and substitute your result into equation (1) to give a new equation containing only V and R

Substitute equation 2 into 1 to give a new equation for p that involves only I and R Re arrange 2 to make I the subject and substitute your result into equation class=

Respuesta :

christabel9256

Answer:

[tex]p = {i}^{2} r[/tex]

[tex]i = \sqrt{ \frac{p}{r} } [/tex]

P= VI

V= IR

Substitute eqn 1 into eqn 2

P= (IR) I

[tex]p = {i}^{2} r[/tex]

[tex] \frac{p}{r} = \frac{ {i}^{2}r }{r} [/tex]

[tex] {i}^{2} = \frac{p}{r} [/tex]

[tex]i = \sqrt{ \frac{p}{r} } [/tex]

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