1. The transistor shunt regulator shown in figure has a regulated
output voltage of 10 volts, when the input varies from 20 volts
to 30 volts. The relevant parameters for the zener diode and the
transistor are : VZ = 9.5 volts, VBE = 0.3 volts, β = 99. Neglect the
current through RB. Then the maximum power dissipated in the
zener diode (PZ) and the transistor (PT) are
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