Question

A bulb is rated as 5v ,100mA. calculate it's power and resistance ​

Answer 1

Answer:

Given : V=5 volts i=100 mA=0.1 A

(a) : Power P=Vi=5×0.1=0.5 watt

(b) : Resistance R=

$\frac{ {v}^{2} }{p} = \frac{ {5}^{2} }{0.5} = 50$

Ω

Explanation:

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