Two ammeters A_1 and A_2 are connected as sho | vedclass

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(B) In the given circuit, the branch containing ammeter $A_1$ has a $p-n$ junction diode connected in reverse bias relative to the $4 	ext{ V}$ batte

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(B) In the given circuit, the branch containing ammeter $A_1$ has a $p-n$ junction diode connected in reverse bias relative to the $4 	ext{ V}$ battery. An ideal $p-n$ junction diode acts as an open circuit (infinite resistance) when connected in reverse bias. Since the diode is in reverse bias, no current flows through the branch containing $A_1$. Therefore, the reading of ammeter $A_1$ is $0 	ext{ A}$.

Two ammeters $A_1$ and $A_2$ are connected as shown in the given figure. By neglecting the internal resistance of the ammeters, the reading in the meter $A_1$ is (in $\text{A}$)

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