though resistor resist the flow of current but ammeter measures the same current how?
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Answered by
2
Ahoy !
Ammeter is a device used to measure the current .
Because V=IR. Circuits most commonly run at a fixed voltage (i.e. "a 6-volt battery").
The current flowing is then determined by the resistance of the circuit.
Since the ammeter has its own very small resistance, this
will change its reading somewhat when put in series with your resistors.
I.e., instead of reading I = V/R resistors,
it will read I = V/(R resistors + R ammeter). In the idealization of R ammeter=0, these are equal.
Now the current we get is same as it before resisted by the resistor
May it helps you ^ _ ^
Ammeter is a device used to measure the current .
Because V=IR. Circuits most commonly run at a fixed voltage (i.e. "a 6-volt battery").
The current flowing is then determined by the resistance of the circuit.
Since the ammeter has its own very small resistance, this
will change its reading somewhat when put in series with your resistors.
I.e., instead of reading I = V/R resistors,
it will read I = V/(R resistors + R ammeter). In the idealization of R ammeter=0, these are equal.
Now the current we get is same as it before resisted by the resistor
May it helps you ^ _ ^
mansiss:
may be ur answer is right.but im not able to understand.sory
if R is negligible how can u prove?
and how I=V if the resistor is negligible
if R ammeter is 0 what is the use of adding it ,the ratio will definately remain sam
so much confusion i have
pls solve it
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Explanation:
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