A 2 W carbon resistor is color coded with green, black, red and brown respectively. The maximum current which can be passed through this resistor is :

Options

A. 100mA
B. 20mA
C. 63mA
D. 0.4mA

Explanation

B B R O Y G B V G W
0 1 2 3 4 5 6 7
`R=50 times 10^2=5000 Omega` ,br> `P=i^2R implies i_(max)= sqrt(P/R) , sqrt(2/5000)=1/50=20 mA`