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
voltage is too high
resistance is too low
circuit has a short
circuit is open
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
20 comments Page 1 of 2.

Namratha nayak said:   1 decade ago
We all know that V=IR, (Kirchoff's law).

When I=0, Voltage, V=0, it means that the circuit is open.

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.

Mohan said:   1 decade ago
When circuit is short current zero and voltage maximum.

Nithin said:   1 decade ago
Current zero means there is an open circuit.

Radhalakshmi said:   1 decade ago
Current flows only when a loop/circuit closes.

Devdatta gaikwad said:   1 decade ago
When ckt. is open vtg is = infinity
When ckt. is short current is = 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.

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.

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.

Manoj mittal said:   1 decade ago
Voltage can not be too high it always same as the souce voltage which we are appling.


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