Current Electricity Ques 103
- A $200 $ $\Omega$ resistor has a certain colour code. If one replaces the red colour by green in the code, the new resistance will be
(a) $100 $ $\Omega$
(b) $400 $ $\Omega$
(c) $300 $ $\Omega$
(d) $500 $ $\Omega$
(2019 Main, 8 April I)
Show Answer
Answer:
Correct Answer: 103.(d)
Solution:
Formula:
- Given, resistance is $200 $ $\Omega$.
So, colour scheme will be red, black and brown.
Significant figure of red band is $2$ and for green is $5$ . When red $(2)$ is replaced with green $(5)$, new resistance will be
$ 200 $ $ohm \rightarrow 500$ $ ohm $
BETA
