The diode shown in the figure is an ideal diode, then reading of the ideal ammeter A is
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a
2.5 A
b
5 A
c
3.1 A
d
4.2 A
answer is B.
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Detailed Solution
The diode is ideal and in the circuit, it is forward biased. Hence, the diode offers no resistance and current through 4Ω is zero.∴ Reading of ammeter =103×6/(3+6) A=5 A