In the following circuit of PN junction diodes D1, D2 and D3 are ideal then current, i is
A
E3R
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B
E2R
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C
2E3R
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D
Zero
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Solution
The correct option is AE3R Diodes D1 and D3 are forward biased and D2 is reverse biased so the circuit can be redrawn as follows. Therefore, the net resistance in the circuit is 3R and the current is E3R