The diode in the shown AC bridge is ideal. Source is sin(t) V,with 1 H and 1 Ω in one side and 1 Ω and 1 F in the other. Find the ammeter reading in amperes, nearest integer, under sinusoidal steady state.
At ω=1, the impedances are j,1,1,−j around the bridge. The ratios satisfy j/1=1/(−j)=j, so the bridge is balanced and its middle nodes have equal potential. No current is driven through the central ideal diode/ammeter branch. Therefore its reading is zero amperes.
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