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7. a light bulb connected to a 9-v battery has a current of 1.5 a flowing. a. find the resistance of the light bulb (in ohms) b. find the power drawn by the light bulb (in w)

Respuesta :

toporc
[tex]R=\frac{V}{I}[/tex]
[tex]R=\frac{9}{1.5}=6\ ohms[/tex]

[tex]P=\frac{(V^{2})}{R}[/tex]
[tex]P=\frac{(9^{2})}{6}=13.5\ watts[/tex]
olemakpadu
a) Resistance,  R =  Voltage, V / Current, I

                           =  9 V / 1.5 A

                           = 6 Ω,    6 Ohms

b) Power P = IV

                     = 1.5*9 = 13.5 W

                    = 13.5 Watts

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