An input resistance of 20 K? causes a noise voltage of 10µV. Suppose two input resistance each of 20 K? are connected in parallel, then find the total noise voltage?

An input resistance of 20 K? causes a noise voltage of 10µV. Suppose

1.	An input resistance of 20 K? causes a noise voltage of 10µV. Suppose two input resistance each of 20 K? are connected in parallel, then find the total noise voltage?
A.	8µV
B.	10µV
C.	20µV
D.	13µV
Answer» B. 10µV