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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
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Automatic Control Systems
In the given figure, of potentiometer V0 = Vi (R0/Ri) only when
RL = 0
RL = ∞
RL is neither low nor high
RL is low but not zero
Show Answer
Correct Answer:
RL = ∞
Explanation:
If R
L
is not infinite, the voltage ratio of potentiometer depends on the value of R
L
. This is called loading effect.
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