GATE Electronics and Communications (EC) 2014 Shift 1 Solved Paper
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Question : 47 of 65
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In the voltage regulator circuit shown in the figure, the op-amp is ideal. The BJT has VBE = 0.7 V and β = 100, and the Zener voltage is 4.7 V. For a regulated output of 9 V, the value of R (in Ω) is _____.
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