Electrical Engineering - Parallel Circuits - Discussion
Discussion Forum : Parallel Circuits - General Questions (Q.No. 17)
17.
A sudden increase in the total current into a parallel circuit may indicate
Discussion:
18 comments Page 1 of 2.
Ali Assad Mir said:
3 years ago
Agree @Saurabh.
As mentioned that this is PARALLEL CIRCUIT, Current can increase only in two conditions:
1) Either resistance decreases (In this case total resistance can be decreased only if another resistor is added in parallel).
Or
2) Voltage, applied to the circuit, increases.
So, the answer should be [C].
As mentioned that this is PARALLEL CIRCUIT, Current can increase only in two conditions:
1) Either resistance decreases (In this case total resistance can be decreased only if another resistor is added in parallel).
Or
2) Voltage, applied to the circuit, increases.
So, the answer should be [C].
Mkhan.q said:
4 years ago
I = V/R.
1. I directly proportional to V.
2. I inversely proportional to R.
So, here the Correct Option is C and not D, because opening any resistor in Parrallel increases net resistance, and when net Resistance is increased, net current is reduced.
1. I directly proportional to V.
2. I inversely proportional to R.
So, here the Correct Option is C and not D, because opening any resistor in Parrallel increases net resistance, and when net Resistance is increased, net current is reduced.
(2)
Anomie said:
6 years ago
Answer is C.
In case if there is an open resistor, then the current flowing through that resistor will split and flow through the other resistances. So even in that case, only the current flowing through each resistor will increase. But the total current into the parallel circuit will remain same.
Thus as per Ohms law V=I*R, the total current into the circuit will increase if the source voltage increases.
In case if there is an open resistor, then the current flowing through that resistor will split and flow through the other resistances. So even in that case, only the current flowing through each resistor will increase. But the total current into the parallel circuit will remain same.
Thus as per Ohms law V=I*R, the total current into the circuit will increase if the source voltage increases.
Jagadesh said:
10 years ago
If in a parallel circuit occurs a sudden increase in total current i.e, due to increase in voltage only because i = v/r.
The correct option is "C".
If V increases I also increases.
From option D, if V and are increase then sudden increase in will not occur.
From option A, if V decreases I also decreases.
From option B, if resistor is open circuited then the total resistance decreases. So the current also decreases.
The correct option is "C".
If V increases I also increases.
From option D, if V and are increase then sudden increase in will not occur.
From option A, if V decreases I also decreases.
From option B, if resistor is open circuited then the total resistance decreases. So the current also decreases.
Aleksandr said:
10 years ago
@Belal is wrong.
1. Power is not same consumption power P = I*V. So I = V/R. If V decrease, I decrease, P decrease. I increase when V increase. So if we put 1000V current will so big that resistor just burn because current goes up.
2. Belal right when say If there is open of one branch the total parallel resistance will increase and V = I*R, therefore I = V/R. So resistance increase current decrease.
Answer C, please explain me why D?
1. Power is not same consumption power P = I*V. So I = V/R. If V decrease, I decrease, P decrease. I increase when V increase. So if we put 1000V current will so big that resistor just burn because current goes up.
2. Belal right when say If there is open of one branch the total parallel resistance will increase and V = I*R, therefore I = V/R. So resistance increase current decrease.
Answer C, please explain me why D?
Belal said:
10 years ago
It's D.
1. If the source voltage drop that cause high amps since P = I*V. So if V decrease the current will increase while power is constant.
2. If there is open of one branch the total parallel resistance will increase that cause increasing current as per V = I*R.
1. If the source voltage drop that cause high amps since P = I*V. So if V decrease the current will increase while power is constant.
2. If there is open of one branch the total parallel resistance will increase that cause increasing current as per V = I*R.
Sanjay said:
10 years ago
Its C. According to the Ohm Law, I<1/R.
Mayur said:
1 decade ago
The answer must be C only. As by open circuit 1 resistance the total resistance for parallel branches increases not decreases. And secondly a drop in source voltage always decrease current irrespective of parallel or series connection.
Adesh said:
1 decade ago
Opening a resistance in a parallel circuit will decrease total current. So answer is C only.
Chethan said:
1 decade ago
Answer : C
In parallel circuit if any branch resistor is removed the equivalent resistance increases, current reduces (current is inversely proportional to resistance), as current is directly proportional to applied voltage so if applied voltage increased the circuit current increases.
In parallel circuit if any branch resistor is removed the equivalent resistance increases, current reduces (current is inversely proportional to resistance), as current is directly proportional to applied voltage so if applied voltage increased the circuit current increases.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers