A regulated power supply, shown in figure below, has an unregulated input (UR) of 15 volts and generates a regulated output V $$_{out.}$$ .Use the component values shown in the figure. The power dissipation across the transistor Q1 shown in the figure is

A regulated power supply, shown in figure below, has an unregulated input (UR) of 15 volts and generates a regulated output V o u t . out. .Use the component values shown in the figure. If the unregulated voltage increases by 20% the power dissipation across the transistor Q$$_1$$

For the circuit shown in the following figure, the capacitor C is initially uncharged. At t = 0, the switch S is closed. The voltage V_C across the capacitor at t = 1 millisecond is

In the figure shown above, the OP-AMP is supplied with $$ \pm $$ 15V.

The diagonal clipping in Amplitude Demodulation (using envelope detector) can be avoided if RC time-constant of the envelope detector satisfies the following condition, (here W is message bandwidth and ω_c is carrier frequency both in rad/sec)