The circuit shown above
Select an option to see the answer and solution.
Engineering Physics · all questionsElectronics
Electronics
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
66
Questions
1/4
Page
Pick an option on a question to see the right answer and solution.
The circuit shown above
The Boolean expression can be realized using minimum number of
Select an option to see the answer and solution.
An amplifier of gain 1000 is made into a feedback amplifier by feeding 9.9% of its output voltage in series with the input opposing. If fL = 20 Hz and fH = 200 kHz for the amplifier without feedback, then due to the feedback
Select an option to see the answer and solution.
The following circuit (where, RL ≫ R) performs the operation of
Select an option to see the answer and solution.
In the circuit shown, the ports Q1 and Q2 are in the states Q1 = 1, Q2 = 0. The circuit is now subjected to two complete clock pulses. The state of these ports now becomes
Select an option to see the answer and solution.
For the circuit shown below, the potential difference (in volt) across RL is
Select an option to see the answer and solution.
An AC voltage of 220 V(rms) is applied to the primary of a 10 : 1 step-down transformer. The secondary of the transformer is centre tapped and connected to a full-wave rectifier with a load resistance. The DC voltage appearing the load is
Select an option to see the answer and solution.
The circuit shown in the figure below function as
Select an option to see the answer and solution.
A bistable multivibrator with a saturation voltage ±5 V is shown in the diagram. The positive and negative thresholds at the inverting terminal for which the multivibrator will switch to the other state, are
Select an option to see the answer and solution.
Which of the given relations between the Boolean variables P and Q are not correct? (In the notation used here, P' denotes not P and Q' denotes not Q)
Select an option to see the answer and solution.
The Common Mode Rejection Ratio (CMRR) of a differential amplifier using an operational amplifier is 100 dB. The output voltage for a differential input of 200 μV is 2 V. The common mode gain is
Select an option to see the answer and solution.
A common emitter transistor amplifier circuit is operated under a fixed bias. In this circuit, the operating point
Select an option to see the answer and solution.
What should be the values of the components R and R2 such that the frequency of the Wien bridge oscillator is 300 Hz? [Given, C = 0.01 μF and R1 = 12 k ]
Select an option to see the answer and solution.
RAM and ROM are
Select an option to see the answer and solution.
A power amplifier gives 150 W output for an input of 1.5 W. The gain in dB is
Select an option to see the answer and solution.
Let and represents mesh currents in the loop abcda and befcb respectively. The correct expression describing Kirchhoff's voltage loop law in one of the following loops is,
Select an option to see the answer and solution.
In the following circuit Tr1 and Tr2 are identical transistors having VBE = 0.7 V. The current passing through the transister Tr2 is
Select an option to see the answer and solution.
Identify the function F generated by the logic network shown.
Select an option to see the answer and solution.
Assuming an ideal voltage source, Thevenin's resistance and Thevenin's voltage respectively for the above circuit are
Select an option to see the answer and solution.
The circuit shown below can be used as
Select an option to see the answer and solution.