dc machines, Electrical Engineering

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what is working of dc machines?

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Find the line current and power factor, Q. A balanced wye-connected load wi...

Q. A balanced wye-connected load with a per-phase impedance of 4 + j 3  is supplied by a 173-V, 60-Hz three-phase source. (a) Find the line current, the power factor, the tota

Explain sar instructions in 8086 family, Explain SAR instructions in 8086...

Explain SAR instructions in 8086 family with example and their effect on flag. SAR: Shift each bit of operand right through given number of bits, this instruction shifts eve

Return instructions , Return Instructions These instruction  are used ...

Return Instructions These instruction  are used to transfer the program sequence from subroutine to the  calling program. Basically  it restores the  previous  contents  of th

Series connected motor, In this case, the armature is connected in series w...

In this case, the armature is connected in series with the field coils. Thus I a   = I f = I         NB. At starting, the back emf is zero (because the m

Explain phase-shift keying, Q. Explain phase-shift keying? In PSK, the ...

Q. Explain phase-shift keying? In PSK, the phase angle of a carrier is keyed between two values. When the values are separated by π radians, it is known as phase-reversal keyin

Explain the conductyvity of atom with four valence electrons, Atoms with fo...

Atoms with four valence electrons are good conductors. This statement is true or false. Ans:  Atoms are good conductors with four valence electrons. This statement is false.

Operations on vectors, Can add vectors using the parallelogram rule Can ...

Can add vectors using the parallelogram rule Can multiply a vector by a scalar            - result is a parallel vector                        • length is scaled

Explain n-type and p-type semiconductors, Explain n-type and p-type semicon...

Explain n-type and p-type semiconductors. n - Type semiconductor: If small amount of pentavalent impurity (group V elements) is added to a pure semiconductor giving a large

Explain the architecture of 8085, Explain the Architecture of 8085. Ø  ...

Explain the Architecture of 8085. Ø  ALU Ø  Interrupt control Ø  Serial I/O control Ø  Timing and control unit Ø  Instruction Register & Decoding

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