Electronics - Series Circuits - Discussion
Discussion Forum : Series Circuits - General Questions (Q.No. 15)
15.
What are the minimum and maximum output voltages?
Discussion:
12 comments Page 2 of 2.
D.saraswathi said:
9 years ago
Min current = 24/15K = 1.6 mA.
We at point A = 1.6mA * 5K = 8 V.
We at point B = 1.6mA * 15K = 24 V.
So, min voltage (24 - 24) = 0 V.
Max voltage (24 - 8) = 16 V.
We at point A = 1.6mA * 5K = 8 V.
We at point B = 1.6mA * 15K = 24 V.
So, min voltage (24 - 24) = 0 V.
Max voltage (24 - 8) = 16 V.
John said:
7 years ago
What is the use of key=a 50% ?
If this means 50% max of the potentiometer, then the max resistance is 50 ohms. Thus using a voltage divider,
Vout max = 24* 5k/5k + 5k = 12 volts [which is wrong].
Is the key=a 50% a typo? Using the whole value of the potentiometer,
Vout max = 24 *10k/ 5k + 10k = 16 volts.
If this means 50% max of the potentiometer, then the max resistance is 50 ohms. Thus using a voltage divider,
Vout max = 24* 5k/5k + 5k = 12 volts [which is wrong].
Is the key=a 50% a typo? Using the whole value of the potentiometer,
Vout max = 24 *10k/ 5k + 10k = 16 volts.
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