Question

find the reading of ammeter

Answer 1

Hii There!!

Here in the given circuit 4 ohm resistor is connected in series and 2ohm-2ohm resistors are connected in parallel combination.

Now, Since parallel combination of resistances is given by:- 1/R=1/R1+1/R2

=) 1/R = 1/2 + 1/2

=) 1/R. =. 2/2

=) R = 1 ohm


Now , 4ohm and 1 ohm resistors are in series combination .
So,. R= R1+R2

=) R= 4+1

=) R= 5ohms (Equivalent/net resistance of the circuit)

◆By Ohm's Law:-
=) V=I×R
Or I=V/R

=) I = 10/5

=) I =2 Ampere.


Since, Ammeter is connected in series,
Reading of ammeter=Value of curremt flowing in the circuit.


Therefore, Reading of Ammeter= 2 Ampere.



Hope it helps
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