Question

A torch bulb is rated 5V and 500ma. Calculate its resistance

Answer 1

V = 5 V

I = 500 mA = 500 × 10^(-3) A

R = V/I = 5/(500 × 10^(-3)) = 10 Ohm

Answer:- 10 Ohm

Answer 2

500mili ampere = 5 /10 ampere

resistance ,= V/ I

= 5/( 5/10)

= 10 ohm

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