Suppose that the resistive components in the DC bridge shown in Fig. 6.2 have the following nominal values: Ru ¼ 3K U ; R1 ¼ 6K U ; R2 ¼ 8K U ; and R3 ¼ 4K U. The actual value of each resistance is...

Suppose that the resistive components in the DC bridge shown in Fig. 6.2 have the

following nominal values: Ru ¼ 3K U ; R1 ¼ 6K U ; R2 ¼ 8K U ; and R3 ¼ 4K U.

The actual value of each resistance is related to the nominal value according to:

Ractual ¼ Rnominal þ vR where vR has the following values: vRu ¼ 30 U ;

vR1 ¼ 20 U ; vR2 ¼ 40 U ; vR3 ¼ 50 U. Calculate the open circuit bridge

output voltage if the bridge supply voltage Vi is 50 V.