Physics....class 10.... electricity....plz answer 2,3 and 4 question only....best answer will be marked BRAINLIEST asap....nd spammers will also be reported asap....
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Explanation:
2.
We know that,
charge q = ne
So,
n = q/e
= 3/(1.6 × 10^-19)
= 1.8 × 10^19
Therefore,
Number of electrons = ~1.9 × 10^19
3.
Potential difference is the difference in the amount of energy that charge carriers have between two points in a circuit.
The unit of potential difference is volt.
4.
No. Ammeter have low resistance. Ammeter should have a low resistance so that there won’t be many alterations in the current flow and it is connected in series which allows maximum flow of current through the circuit.
Hope it helps!
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