Wednesday, 25 May 2016

Day 1 reflection

Today was our first day at NTU. It was big, huge and yes..... AMAZING. The students studying area, labs and architecture were really good. We then met our professor, Mr. Leng. He was a very friendly person who was open to all sorts of question and he let us do whatever we wanted and we could experiment with the materials given. He made difficult concepts look easy and he even called some students to assist him and we all soon became friends. Mr. Leng taught us about how a D.C. motor works and about the fleming left-hand rule.


Fleming's left-hand rule consists of three fingers

  • Thumb
  • Index finger
  • Middle finger
The Thumb represents the direction of the force, the Index finger represents the magnetic field and the middle finger represents the Current flowing through the wire
D.C. Motor(Direct current)

A D.C. motor consists of some parts mainly
  • A battery
  • A magnet
  • A coil of copper wire
  • Two metallic stands
The battery powers the motor while the magnet provides the ‘kick' that is needed to turn the coil of wire. If you were to zoom into the copper wire, you would find out that the coil of wire is half-insulated. This allows the coil of wire to make half a turn before inertia kicks in and allows the coil of wire to make a complete turn. 

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