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ECNG1012 : Engineering Science and Technology (Semester I- 2024/2025)

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For the active region, which of the following is true?
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In Multisim, the frequency response of an amplifier circuit can be seen using which of the instruments found on the Instrument toolbar?
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What is the internal resistance of the 300mA range of an analog ammeter, if the full scale deflection voltage drop of the ammeter is 50mV?

 

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The LCR/ESR meter can also be used as a multimeter. There are a separate set of leads for this function. The black lead is to be connected to terminal 20 and the red lead is to be connected to terminals 22 or 25 depending on the type of measurement.

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voltage_divider

Applying the Potential Divider Law to the circuit shown above produces which of the following equations:

i) 

ii) 

iii) 

iv) 

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The period of a waveform runs from:

(1) 0 to  

(2) 0 to 

(3) 0 to 

(4) 0 to 

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What is the internal resistance of the 10V range of an analog voltmeter, if the sensitivity of the voltmeter is 1000Ω/V?

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Which of the following equations is used to calculate the RMS value of the sine wave shown below?

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In order to measure the resistance of a resistor using the LCR meter in the diagram below, what sequence of actions must be performed to facilitate measurement?

i. Ensure that the appropriate cables are connected to the LCUR LPOT HCUR HPOT terminals.

ii. Power on the LCR/ESR meter.

iii. Press and release L/C/Z/DCR Function key a few times until the primary display turns to DCR.

iv. Press and release D/Q/θ/ESR Function key a few times until the secondary display turns to ESR.

v. Attach the clips to the end of the device that is to be measured.

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The RMS of a alternating signal is the effective value that corresponds to the direct current signal that will produce the same heating effect.
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