Electrical Engineering - Energy and Power - Discussion
Discussion Forum : Energy and Power - General Questions (Q.No. 2)
2.
When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is
Discussion:
23 comments Page 3 of 3.
Sanoj said:
1 decade ago
The ammeter is connected in series so if an ammeter reads zero when there is no current is passing through it that is the ckt is open or disconnected.
Noonu said:
1 decade ago
r=0 when short circuited
r=infinity(high) when open circuited.
r=infinity(high) when open circuited.
Kumar said:
1 decade ago
If shorted it will show directly zero.
I hope option A is the correct one.
Its conductivity is directly proportional to the rise in temperature. But in this condition the element offers certain resistance. So the meter shows reading near to zero but not zero.
I hope option A is the correct one.
Its conductivity is directly proportional to the rise in temperature. But in this condition the element offers certain resistance. So the meter shows reading near to zero but not zero.
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