A carbon resistor has three bands as Brown Black and Green in order. What will be that range of resistance it offers.

Options

A. `7 xx 10^(5) Omega - 13 xx 10^(5) Omega`
B. `9 xx 10^(5) Omega - 11 xx 10^(5) Omega`
C. `8 xx 10^(5) Omega - 12 xx 10^(5) Omega`
D. None of these

Answer

C

Explanation

`8 xx 10^(5) Omega - 12 xx 10^(5) Omega`
resistance R = `10 xx 10^(5) pm 20 ` %
`therefore 20 % ` of 1000000 = 200000 `Omega`
`therefore ` Resistance R = ` (1000000 pm 2000000) Omega`
= `8 xx 10^(5) Omega " OR " 12 xx 10^(5) Omega`