Pre-Laboratory Assignment 1-) What are the basic purposes of using an oscilloscope and a multimeter?

Q: What is a oscilloscope ts and what it’s used  for?

A: Frequency: Frequency is defined as the number of times a repetitive event occurs per unit of time.…

Q: Explain high-pressure mercury vapour lamp with diagram.

A: High-pressure mercury lamps are a type of discharge lamp such that the light is produced due to the…

Q: Why electrons are more mobile than the holes?

A: Electrons, when excited, move from the valence band to the conduction band. These electrons in the…

Q: How do you describe an interface of an electric device?

A: We need to explain interface of electric device.

Q: What are the reasons causing the unstability of perovskite solar cells?

A: To do: We have to explain about reasons causing the unstability of perovskite solar cells.

Q: True or Flase Devices such as eyeglasses, cameras, microscopies, and telescopes are related to the…

A: Light plays a crucial role in the functioning of various devices such as eyeglasses, cameras,…

Q: What will be the unit of hole mobility

A: The solution is provided in the following section:

Q: Criteria to select resistor & capacitor in electrical circuit. How to select the resistor and…

A: Resistors and capacitors are passive electronic components that are widely used in circuits to…

Q: Is there a physical button to put the input impedance of oscilloscope?

A: Oscilloscope:

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.