For the circuit shown below, assume that the zener diode is ideal with a breakdown voltage of 6 Volts. The waveform observed across R is

For the Zener diode shown in the figure, the Zener voltage at the knee is 7 V. The knee current is negligible and the Zener dynamic resistance is 10 ^$\Omega$. If the input voltage (V_i) ranges from 10 V to 16 V, what will be the range of out put voltage (V₀)?

In an ideal differential amplifier shown in figure, a large value of R_E

A regulated power supply as shown in the figure below has an unregulated input (UR) of 15 V and generates a regulated output, i.e. V_out. If the unregulated voltage increases by 20%, the power dissipation across the transistor Q1 ( Note: The ground has been shown by the symbol $\nabla$.)

The Zener diode in the regulator circuit shown in figure has a Zener voltage of 5.8 Volts and a Zener knee current of 0.5 mA. The maximum load current drawn from this circuit ensuring proper functioning over the input voltage range between 20 and 30 Volts, is

In the CMOS inverter circuit shown, if the transconductance parameters of the NMOS and PMOS transistor are k_n = k_p = $\mu$_nC_0x $\dfrac{W_n}{L_n}$=$\mu$_p C_ox $\dfrac{W_p}{L_p}$= 40 $\mu$A/ V² and their threshold voltage are V_THn = |V_THp| = 1V, the current I is

The voltage e_o indicated in figure has been measured by an ideal voltmeter. Which of the following can be calculated?

Both transistors T₁ and T₂ in figure have a threshold voltage of 1 Volt. The device parameters K₁ and K₂ of T₁ and T₂ are, respectively, 36 A/V² and 9 A/V². The output voltage V₀ is

Three identical amplifiers with each one having a voltage gain of 50, input resistance of 1 K$\Omega$and output resistance of 250 $\Omega$, are cascaded. The open circuit voltage gain of the combined amplifier is

For the op-amp circuit shown in the figure, V₀ is

The transfer characteristic for the precision rectifier circuit shown below is (assume ideal OP-AMP and practical diodes)

An amplifier without feedback has a voltage gain of 50, input resistance of 1 K$\Omega$ and output resistance of 2.5 K$\Omega$. The input resistance of the current-shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2, is

In the circuit shown below, the op-amp is ideal, the transistor has V_BE = 0.6 and ^$\beta$ = 150. Decide whether the feedback in the circuit is positive or negative and determine the voltage V at the output of the op-amp.

In the transistor amplifier circuit shown in the figure below, the transistor has the following parameters: $\beta_{DC} = 60, V_{BE} = 0.7V, h_{ie} \rightarrow \infty, h_{fe} \rightarrow \infty$ The capacitance C_c can be assumed to be infinite.

In the figure above, the ground has been shown by the symbol $\nabla$

The small-signal gain of the amplifier v_c/v_s is

Two identical NMOS transistors M1 and M2 are connected as shown below. V _bias is chosen so that both transistors are in saturation. The equivalent gm of the pair is defined to be $ \dfrac{\partial I_{out}}{\partial V_i}$at constant V_out The equivalent g_m of the pair is

The value of C required for sinusoidal oscillations of frequency 1 kHz in the circuit of the figure is

In the transistor amplifier circuit shown in the figure below, $\beta_{DC} = 60, V_{BE} = 0.7V, h_{ie} \rightarrow \infty, h_{fe} \rightarrow \infty$ The capacitance C_c can be assumed to be infinite.

If ^$\beta_{DC}$ is increased by 10%, the collector-to-emitter voltage drop (Note: The ground has been shown by the symbol $\nabla$.)

For the BJT circuit shown, assume that the $\beta$ of the transistor is very large and V_BE = 0.7 V. The mode of operation of the BJT is

In a full-wave rectifier using two ideal diodes, V_dc and V_m are the dc and peak values of the voltage respectively across a resistive load. If PIV is the peak inverse voltage of the diode, then the appropriate relationships for this rectifier are

The circuit using a BJT with $\beta$ = 50 and V_BE = 0.7 V is shown in figure. The base current I_B and collector voltage V_C are respectively

Given the ideal operational amplifier circuit shown in figure indicate the correct transfer characteristics assuming ideal diodes with zero cut-in voltage.

The output voltage of the regulated power supply shown in figure is

In the voltage regulator shown in the figure, the load current can vary from 100 mA to 500 mA. Assuming that the Zener diode is ideal (i.e., the Zener knee current is negligibly small and Zener resistance is zero in the breakdown region), the value of R is