20. What the ammeter A will read when (a) the key K is
off, (b) the key K is on? The resistance of the ammeter
is negligible
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Answered by
1
Answer:
ammeter is a device used to measure the flow of charges in shot current
a) wen the key is off the reading is zero
b)when the key is on it marks the respective numerical value that will be given in the question
yes the resistance of an ammeter is negligible.
Answered by
0
Answer:
(A) the ammeter will no show the reading in other words it will show electric current is 0.because there is no flow of electric current as the switch is off.
(B) the resistance will be non zero
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