Electronics - Voltage and Current - Discussion
Discussion Forum : Voltage and Current - General Questions (Q.No. 12)
12.
If the current in a circuit equals 0 A, it is likely that the
Discussion:
20 comments Page 1 of 2.
Sneha s nirmale said:
1 decade ago
Even tough voltage is too high practically it is impossible for current to be zero. So in that case the only option is circuit is open which offers infinite resistance.
R = V/I.
R - resistance.
V - voltage.
I - current.
If I = 0 then R = infinity.
R = V/I.
R - resistance.
V - voltage.
I - current.
If I = 0 then R = infinity.
M.Prasannakumar said:
1 decade ago
When the ciruit is open there is no flow of current.
As considering ohm's law V=IR.
where V is directly proportional to current.
So, there is voltage in circuit automaticaly no current will produce.
As considering ohm's law V=IR.
where V is directly proportional to current.
So, there is voltage in circuit automaticaly no current will produce.
Nagendra said:
1 decade ago
When you consider capacitor, i = c(dv/dt), v=const, then i=0. There is no current through the capacitor. Capacitor acts as a open circuit.
i.e. i=0, it is open circuit.
i.e. i=0, it is open circuit.
Buddivathna said:
1 decade ago
In a short circuit, the current is infinite (in theory), and voltage is zero.
In an open circuit, the voltage is the same as the source, and the current is zero.
In an open circuit, the voltage is the same as the source, and the current is zero.
Balan said:
1 decade ago
Current flow only in closed circuit so no current flow in open circuit for example to on the fan switch condition is turned from off state to on state.
ABAR said:
6 years ago
Think practically,
If Current is, the circuit always closed.
If circuit is open, there is no way for electron to flow in circuit.
If Current is, the circuit always closed.
If circuit is open, there is no way for electron to flow in circuit.
Laksh said:
1 decade ago
Current flows only when closed path exists and if the path is open current is zero. i.e I=V/R and if R= infinite ( open) I=0.
Joan said:
9 years ago
When current does not flow the circuit is said to be open while when there is the flow of current it is said to be closed.
Nikitha said:
1 decade ago
Current doesn't flow if it is in open circuit, because there is no voltage supply from one end to another end.
Palanivel said:
1 decade ago
If I=0, or the circuit is open the voltage is too high.
But why the answer A wrong please please explain.
But why the answer A wrong please please explain.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers