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Electronics and Communication Engineering - Automatic Control Systems - Discussion

Discussion Forum : Automatic Control Systems - Section 1 (Q.No. 22)
Automatic Control Systems
22.
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
Answer: Option
Explanation:

If RL is not infinite, the voltage ratio of potentiometer depends on the value of RL. This is called loading effect.

Discussion:
1 comments Page 1 of 1.
Xyz said:   10 years ago
How the current will pass through RL if it is infinite?
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