Physics neco 2005

A 12V battery supplies a current of 0.4A to a lamp. Calculate the resistance of the lamp.

a

30.00

b

4.80

c

3.00

d

0.30

e

0.03

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Chineduvalentine
4 years ago

V=IR ( where V= Volts , I= Current, R= Resistance)
V/I=R
12/0.4=R
30=R
Therefore Resistance is 30ohms

30=R

It is 30 ojhms

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