Electrical Engineering - Series-Parallel Circuits - Discussion

Discussion Forum : Series-Parallel Circuits - General Questions (Q.No. 4)
4.
A certain voltage divider consists of two 12 k resistors in series. Which of the following load resistors will have the most effect on the output voltage?
1 M
24 k
18 k
12 k
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 2 of 2.

Chandana priya said:   9 years ago
We know that from ohm's law if current increases voltage also increases. So if resistance decreases current increases. 12k+12k gives 24k.

In parallel resistance decreases. So 12k is more appropriate for less resistance. So more voltage.

VIPIN CHAUHAN said:   10 years ago
In voltage divider we take parallel of one of series resistance with load resistance. Now if we take load resistance equal than parallel of two will be half of one of the series resistance which will be minimum and hence affect the voltage more.

GOPI REDDY said:   10 years ago
Inversely proportional to the resistance so less will be the resistance more will be the current hence less valued resistance effect more voltage output.

By ohm's law V = IR.
I = V/R.

Chaitu said:   1 decade ago
Thank You Harpreet Sing

Venki said:   1 decade ago
If the value of resistanace more, the voltage drop is high hence o/p voltage reduced.

Anand said:   1 decade ago
Nice explanation Harpreet singh

HARPREET SING H said:   1 decade ago
BY OHM LAW.

Inversally proportional to the resistance so less will be the resistance more will be the current hence less valued resistane effectt more voltage output.

SO ANSWER IS D=12.

Harpreet said:   1 decade ago
By ohm's law V=IR
I=V/R

SO CURRENT INVERSELY PROPORTIONAL TO THE RESISTANCE

Hence less will be resistance more is the current flowing so more voltagee dropped and low resistance will more effect on output voltages.

So answer is D


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