engineering recuitment GATE EE 2023-24 Test Series Analog Electronics Power Amplifiers and 555 Timer and Voltage Regulators Voltage Regulators
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 _____.
Enter numerical value using the virtual keypad. Round off where necessary.