Problem 1. Basic Electronics tw A multimeter is used to measure the voltage across resistances shown in circuit diagram below. We know that the driving voltage E₁= 10 V, R₁ = 20 MQ, R₂ = 30 MQ, R₁ = 50 MQ. The measurement voltage between A and B is VAB = 4 V. a) What is the loading impedance of the voltage meter used across A and B terminals? b) What is the loading error when the measured voltage VAB = 4 V? c) If we use the same meter to measure voltage across B and C terminals, what is the measurement voltage? and what is error percentage over the true value? R₁ 2 R₂ m 03 A

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Problem 1. Basic Electronics
zw >
A multimeter is used to measure the voltage across resistances shown
in circuit diagram below. We know that the driving voltage E₁= 10 V, R₁ = 20 MQ, R₂ = 30 MQ, R₁ = 50 MQ. The
measurement voltage between A and B is VAB = 4 V.
a) What is the loading impedance of the voltage meter used across A and B terminals?
b) What is the loading error when the measured voltage VAB = 4 V?
c)
If we use the same meter to measure voltage across B and C terminals, what is the measurement
voltage? and what is error percentage over the true value?
R₁
2
R₂
m
03
A
Transcribed Image Text:Problem 1. Basic Electronics zw > A multimeter is used to measure the voltage across resistances shown in circuit diagram below. We know that the driving voltage E₁= 10 V, R₁ = 20 MQ, R₂ = 30 MQ, R₁ = 50 MQ. The measurement voltage between A and B is VAB = 4 V. a) What is the loading impedance of the voltage meter used across A and B terminals? b) What is the loading error when the measured voltage VAB = 4 V? c) If we use the same meter to measure voltage across B and C terminals, what is the measurement voltage? and what is error percentage over the true value? R₁ 2 R₂ m 03 A
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