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 2 of 3.
Ramakanth said:
1 decade ago
It is not an ideal resistor so r is approximately equal to zero but not exactly zero when short circuit.
(1)
Ganesh teja said:
1 decade ago
When high current pass through the ohmmeter its start working and it is shorted then it shows zero.
Priya said:
1 decade ago
When the circuit is shorted high current flow through the circuit. So the resistance value is zero.
Yogesh said:
1 decade ago
Ohmmeter measures resistance, so if it measures zero then resistance is zero, which is for a wire.
Mufaro said:
2 months ago
@All.
V is directly proportional to R.
i.e V=IR the increase in V increases in R and vice versa.
V is directly proportional to R.
i.e V=IR the increase in V increases in R and vice versa.
Ravi Purohit said:
1 decade ago
Its option B, because short circuit has zero resistance and open circuit has infinite resistance.
Atul said:
10 years ago
At the time short resistance is very low approximately zero. So answer is correct i.e. B Shorten.
KOUSHIK MONDAL said:
10 years ago
The resistance of short circuit is zero. So the correct answer is (B).
Nandeep said:
9 years ago
I think if analog meter directly goes to zero and MCB will break down.
Umapati k said:
9 years ago
Zero resistance: Short circuit.
Infinite resistance: Open circuit.
Infinite resistance: Open circuit.
(4)
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