Electrical Engineering - Series-Parallel Circuits - Discussion
Discussion Forum : Series-Parallel Circuits - General Questions (Q.No. 7)
7.
A certain voltage divider consists of three 1 k
resistors in series. Which of the following load resistors will have the least effect on the output voltage?
resistors in series. Which of the following load resistors will have the least effect on the output voltage?1 M
100 k
1 k
330
Discussion:
40 comments Page 2 of 4.
Sam said:
9 years ago
As per Loss formulae: I^2.R & Ohm's Law: I inversely proportional to R.
More Resistance higher will be the loss.
1Mohm is the huge value of resistance.
Definitely, the output voltage is very less.
Hence, the answer for least effect is 300 ohm.
Otherwise, Data is insufficient.
More Resistance higher will be the loss.
1Mohm is the huge value of resistance.
Definitely, the output voltage is very less.
Hence, the answer for least effect is 300 ohm.
Otherwise, Data is insufficient.
Pawan Dhiman said:
9 years ago
How possible total resistance in series is 3 ohm? while every resistance has a value of 1 Kohm.
Puja said:
9 years ago
Please, someone explain me briefly. I don't understand still.
Rahul k said:
8 years ago
By ohms law v=ir.
I=v/r.
I.e. I is inversely proportional to r.
Hence, when r is more than I is less but I is directly proportional to v hence v is also less. R=1Mohm is more in above options.
I=v/r.
I.e. I is inversely proportional to r.
Hence, when r is more than I is less but I is directly proportional to v hence v is also less. R=1Mohm is more in above options.
Sanju said:
8 years ago
Can anyone explain this?
Saranya said:
8 years ago
Somebody explain this clearly? I can't understand.
Mahes said:
8 years ago
The circuit is connected in series, so current is the same through each resistor is same....though all resistant are having the same value. Each resister will consume same power (i.e. I^2R) and the voltage drop across each resistor is same(i.e. v=IR).
Ayo said:
7 years ago
Use the rule of voltmeter impact on measured circuit.
MANIK said:
7 years ago
If R is max then current I will be less thus least effect on the circuit.
Prasanna said:
5 years ago
Can anyone please explain it clearly.
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