Instrumentation Lab Report Example | Topics and Well Written Essays - 1500 words

Instrumentation - Lab Report Example Two probes of a voltmeter can be connected to the plate in opposite directions to the other sides of the plates [1]. When there is no magnetic field perpendicular to the plate, as shown in situation (a) in In case where there is a magnetic field present, the voltmeter will show a reading as shown in the (b) part of the diagram. This phenomenon is known as the Hall-effect. A Hall probe can be used to measure the Hall-effect that was demonstrated above [2]. When an electric current runs in a conductor in a magnetic field, a traversal force is exerted [2] on the charge carriers by the magnetic field. Therefore the charge carriers are pushed on one side of the conductor [2] as shown in the (b) part of the diagram. This phenomenon was discovered by E. H. Hall in 1879 [2]. This is the basic principle used in the operations of Hall-effect devices. A sensor used for measuring thickness or the compactness based on Hall-effect has been developed; this sensor is called in situ sensor [3]. Whenever there is a change in the magnetic force being applied, the Hall sensor, which is works as a transducer [3], generates an output voltage. This output is variable and is dependent upon the thickness of the material being measured and the force of magnetic field being applied. The distance between the sensor and the magnetic source is the main determinant of the output voltage [3]. Vacuum failure and vacuum bag leaks can be detected with the use of the sensor [3]. This sensor is primarily used in the quality control departments and cure cycle [3] of the factories producing different material which need a reliable sensor. Most of the times, the sensor is paired with a monitoring device to demonstrate the readings. For the purpose of online monitoring and compaction of a curing composite, the sensor is quite successful. This device is being used in the quality control departments and the manufacturing departments of many businesses. They

Theology & Wisdom Research Paper Example | Topics and Well Written Essays - 2250 words

Theology & Wisdom - Research Paper Example This becomes significant not only because it re-echoes the Jewish faith but because it counters the notion of the belief on pluralist God, which was the dominant notion or belief during the ancient period. This concept is significant in the understanding of the notion of god vis-Ã  -vis evil because as it removes the plurality of gods, it opened the tension between the goodness of God and the presence of evil. This tension necessitates justification as the presence of evil in the world does not only posit a contradiction to the goodness of God but it also acts as a counter-claim for the one God being all-powerful. Ben-Sira claims that there are certain attributes ascribed to God alone. These are God is one and the same. God is eternal. God is the all and in all. This means that God is both transcendent and immanent in all creation. God is the creator. God is powerful and His power is manifested in the creation when He created everything out from His words. God is omniscient. God knows everything even the deepest mysteries of the cosmos and He sees thongs even before they come to be. God is merciful and His mercy is to all people whether gentile or Jew. As God is merciful, God is also righteous - He punishes those who are wicked and unrepentant of their sins and He shows His filial love and protection to those who are faithful. These attributes do not cover the immensity of God. These attributes are simply those, which the human mind and faith can grasp in the midst of God’s immense goodness and power. However, if God is these as understood by the human mind and heart, why it is evil? Ben-Sira asserts that the presence of evil in the world is the result of two factors, namely the origin of sin and the conflict of the freewill.