Full Wave Rectifier

Q. 102. What is the current through an ideal PN junction diode shown in figure 0 10 mA 20 mA 50 mA

Q. The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be

Q. For the given circuit, the power across zener diode is ____$\text{mW}$.

Q. The phase difference between the input and output voltages in a common emitter arrangement is

1. 180$°$
2. 90$°$
3. 0$°$
4. 120$°$

Q.

What is filter circuit?

Q. In a given circuit diagram, a \(5~\text V\) zener diode along with a series resistance is connected across a \(50~\text V\) power supply. The minimum value of the resistance required, if the maximum Zener current is \(90 ~\text{mA} \) will be \(\Omega\). (Integer only)


V=50V 

Q. The current flowing through the Zener diode in the given circuit is

1. $20\text{mA}$
2. $25\text{mA}$
3. $15\text{mA}$
4. $5\text{mA}$

Q. A current in circuit is given by i=3+4sinwt. Then the effective value of current is:(1)5(2)7^1/2(3)17^1/2(4)10^1/2

Q. Draw the circuit diagram of a full wave rectifier and explain its working. Also, give the input and output waveforms.

Q. A 220 V AC. supply is connected between points A and B. What will be the potential difference V across the capacitor? Options: 220 V 110 V 0 V V

Q.

Phase angle between voltage and current in RLC circuit is given by

1. 

2. 

3. 

4. 

Q. 20.The equation of an alternating voltage is V=220sin(Omega t+÷ 6) and the equation for current is I=10sin(Omega t+÷ 6) the impedance in ohm of the circuit is

Q. 46.Two capacitors C1 and C2 are connected in a circuit as shown in figure. The potential difference (VA - VB) is : (a)8V (b)-8V (c)12V (d) -12V

Q. Three equal resistors connected in series across a source of emf together dissipate $10\text{W}$ of power. What would be the power dissipated if the same resistors are connected in parallel across the same source of emf?

1. $50\text{W}$
2. $70\text{W}$
3. $90\text{W}$
4. $110\text{W}$

Q. Figure shows a $\text{DC}$ voltage regulator circuit, with a Zener diode of breakdown voltage $=6\text{V}.$ If the unregulated input voltage varies between $10\text{V}$ to $16\text{V},$ then what is the maximum Zener current ?

1. $1.5\text{mA}$
2. $3.5\text{mA}$
3. $2.5\text{mA}$
4. $7.5\text{mA}$

Q. The current through an ideal PN-junction, shown in the following circuit diagram, will be,

1. Zero
2. $1\text{mA}$
3. $10\text{mA}$
4. $30\text{mA}$

Q. In the given circuit the current through Zener Diode is close to:

1. $0.0\text{mA}$
2. $6.7\text{mA}$
3. $4.0\text{mA}$
4. $6.0\text{mA}$

Q. In the given transistor circuit, the base current is $35\mu A$. The value of $R_b$ is -

1. $100k\Omega$
2. $200k\Omega$
3. $300k\Omega$
4. $400k\Omega$

Q. (a) In the following diagram, is the junction diode forward biased or reverse biased ?

(b) Draw the circuit diagram of a full wave rectifier and state how it works.

Q. The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is \(6~ \text{V}\) and the load resistance is \(R_L = 4 ~\text{k}\Omega\). The series resistance of the circuit is \(R_i=1 ~\text{k}\Omega\). If the battery voltage \(V_B\) varies from \(8 ~\text{V} ~\text{to} ~16 ~\text{V}\), what are the minimum and maximum values of the current through Zener diode ?

Q. In series LCR circuit, the plot of $I_{max}$ vs is shown in Figure. Find the bandwidth and mark in the figure.

Q. The current in a circuit varies with time as I=2\surd t. Then the rms value of the current for interval t=2 to t=4 sec is (1)\surd3 A (2)2\surd3 A (3)\surd3/2 A (4) (4-2\surd2)

Q. Calculate the value of $V_0$, if the silicon and germanium diode, start conducting at $0.7\text{V}$ and $0.3\text{V}$ respectively, in the given circuit. If the Ge diode connection be reversed, what will be the new values of $V_0$.

1. $11.7,11.7$
2. $11.3,11.7$
3. $11.3,11.3$
4. $11.7,11.3$

Q. A Zener diode having break-down voltage $5.6\text{V}$ is connected in reverse bias with a battery of emf $10\text{V}$ and a resistance of $100\Omega$ in series. The current flowing through the Zener is

1. $4.4\text{mA}$
2. $44\text{mA}$
3. $2.2\text{mA}$
4. $22\text{mA}$

Q. (a) Write the functions of the three segments of a transistor.
(b) The figure shows the input waveforms A and B for 'AND' gate. Draw the output waveform and write the truth table for this logic gate.

Q.

In the given circuit both diodes are ideal having zero forward resistance and built-in potential of $0.7V$. Find the potential of point $E$ in volts.

Q. In the given circuit, the current through Zener diode is $\frac{5k}{3}\text{mA}$. The value of $k$ is ___

1. $1$
2. $3$
3. $4$
4. $2$

Q.

How is an ammeter made?

Q. A full wave rectifier circuit along with the input and output voltages is shown in the figure

The contribution to output voltage from diode 2 is if in first half cycle diode 1 is in forward biased condition.

1. A, C
2. B, D
3. B, C
4. A, D

Q. The electrical circuit used to get smooth D.C output from a rectifier circuit is called:

1. Filter
2. Oscillator
3. Logic gates
4. Amplifier