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
overheated
shorted
open
reversed
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 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.

Ravi Purohit said:   1 decade ago
Its option B, because short circuit has zero resistance and open circuit has infinite resistance.

Atul said:   9 years ago
At the time short resistance is very low approximately zero. So answer is correct i.e. B Shorten.

KOUSHIK MONDAL said:   9 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:   8 years ago
Zero resistance: Short circuit.

Infinite resistance: Open circuit.
(1)

Noonu said:   1 decade ago
r=0 when short circuited
r=infinity(high) when open circuited.


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