Q. A voltage of 15 volt is applied across a colour coded carbon resistor with first, second and third rings of brown, green and black colours. What is the current flowing through the resistor?
(a) 3 ampere
(b) 2 ampere
(c) 1 ampere
(d) None of the above
Answer: c
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A=Brown- 1
B=Green – 5
C=Black- 0
V=15 (Given in Question)
R=ABx10 ka power C
R = 15 x 10 ka power 0
V=IR
I=R/V
I= 15/15
= 1 ampere (Answer)