A DC Wheatstone bridge used in an electronic system is fed by 200V Battery as shown in figure Q19. The values of arm resistances are R1 = 10 Q, R2 = 10 Q %3D and R3 = 20 . Then, the value of R4 is calculated as, ITotal I2 R3 R, • Vout (Vc-VD) Vs D R2 R4 Figure Q19. a. 20 ohms b. 30 ohms C. 40 ohms d. 50 ohms B.

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A DC Wheatstone bridge used in an electronic system
is fed by 200V Battery as shown in figure Q19. The
values of arm resistances are R1 = 10 Q, R2 = 10 Q
%3|
and R3 = 20 . Then, the value of R4 is calculated as,
ITotal
I2
R3
R,
• Vout
(Vc-Vo)
Vs
D
R2
R4
Figure Q19.
а. 20 ohms
b. 30 ohms
C. 40 ohms
d. 50 ohms
B.
Transcribed Image Text:A DC Wheatstone bridge used in an electronic system is fed by 200V Battery as shown in figure Q19. The values of arm resistances are R1 = 10 Q, R2 = 10 Q %3| and R3 = 20 . Then, the value of R4 is calculated as, ITotal I2 R3 R, • Vout (Vc-Vo) Vs D R2 R4 Figure Q19. а. 20 ohms b. 30 ohms C. 40 ohms d. 50 ohms B.
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