Recent content by sumit sawai

  1. S

    Finding Unit Normal Vector of 2 Vectors

    i+j+k is not a unit vector unit vector has magnitude 1 unit vector in the direction of i+j+k is (i+j+k)/3^.5
  2. S

    Why Transformers Hum? | Unpaired Electrons & Magnetic Fields

    2nd one is correct it is called as magnetostriction core material in transfprmer is feromagnetic in changing magnetic field of transformer there is slight change in shape of material which causes vibration which produce huming noice
  3. S

    Best Oscilloscope for Electrical Engineering Student Under $700

    go for www.freescale.com you may order for free sample there
  4. S

    Negative Magnitude Phasor Presentation: Is Erasing the - Sign Correct?

    you are right
  5. S

    How Does DC Motor Commutation Influence Rotation and Torque?

    i am unable to understand dc motor commutation can anybody help please
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