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Which of the following statements are correct for an ideal constant voltage source? 1. Its output voltage remains absolutely constant whatever the change in load current. 2. It possesses zero internal resistance so that internal voltage drop in the source is zero. 3. Output voltage is provided by the source would remain constant irrespective of the amount of current drawn from it. 4. Output voltage provided by the source varies with the amount of current drawn from it.
If source resistance in an amplifier circuit is zero, then voltage gain (output to input voltage ratio) and source voltage gain (output to source voltage ratio) are the same.
An SCR rectifier circuit is designed such that the average output voltage is 77.64 V & RMS value of output voltage is 145.873 V. Find the voltage ripple factor.
Consider the following statements regarding the Moore and Mealy models: 1. In the Mealy circuit, the final output depends only on the present state of memory elements. 2. In the Moore circuit, output can change in between the clock edges if the external inputs change. 3. The implementation of a logic function in the Mealy circuit needs fewer states than the Moore circuit. Which of the above statements are not correct?
Consider the AND logic circuit in which V2 = 3 V and V1 lie between 0 to 5 V. The output voltage is V0. The cut-in voltage of diode D1 and D2 is 0.6 V. The output voltage V0 versus V1 corresponding to the below network is
Wages of the workers are normally, the proportionality derived from their efficiency. But the concept of efficiency of labour is itself vague such as amount of physical output, output per man hour or output per man shift. But output is not the function of man alone. There are other factors which affect the output. Which among the following is/are not the factor(s) that would affect the output directly?
1. Physical condition of work
2. Nature of machinery
3. Technical process
4. Quality of raw material
5. System of management
6. Role of fellow workers
7. Competitors in the market
A sinusoidal input voltage Vin of frequency ω is fed to the circuit shown in the figure, where C1 ≫ C2. If Vm is the peak value of the input voltage, then output voltage (Vout) is
Electronics mcq question image
Statement 1: Voltage gain of -5 means that the output voltage has been attenuated. Statement 2: Voltage gain of -5db means that the output voltage has been attenuated.
Consider the following statements: 1. The voltage developed across the OFF switches of the half-bridge converter is the maximum dc-link voltage. 2. In the full-bridge converter, the voltage across the primary of the transformer is the dc link voltage. 3. The voltage developed across the OFF switches of the full-bridge converter is half the maximum dc-link voltage. Which of the above statements are correct?
For the given circuit, find VTH for the circuit external to RL.
Circuit Theorems In Ac Analysis mcq question image