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(a) Show that the total power in a 3-phase, 3-wire system using the two-wattmeter method of measurement is given by the sum of the wattmeter readings. Draw a connection diagram.
(b) Draw a phasor diagram for the two-wattmeter method for a balanced load.
(c) Use the phasor diagram of part (b) to derive a formula from which the power factor of a 3-phase system may be determined using only the wattmeter readings.
When are intermolecular forces the strongest? Intermolecular forces (dipole-dipole, dispersion and hydrogen bonds). These forces are weaker than chemical (covalent) bonds. Thus
Define in detail about the test and characteristics of good bricks. Tests for bricks 1. Absorption a brick is taken and it is weighed dry. It is then immersed in water for
How to find the acceleration of a body in a non inertial frame on the action of friction? Solution) Use the concept of pseudo force. Multiply the mass of the body of which you
Write an assembly program to make a microwave. Need: 1. The microwave has a clock (hh:mm:ss am/pm) and the user should be able to alter the clock at any time. 2. For c
N-Type Substances: When a small quantity of Arsenic or Phosphorous (group VA elements) is added to silicon or Germanium, it becomes good conductor of negative charges, such a s
how to get the formula ?.
Has Vc a limit? Answer; precisely, but we do not know its limit. But we know it is greater than c.
how to prepare for logic gate project?
Concept: You are moving into an apartment and take the elevator to the 6th floor. Does the force exerted on you by the elevator do positive or negative work when the elevator (a)go
The impression of sound heard by our ears persist in our mind for 1/10th of a second. If another sound is heard before 1/10 second is over, the impression of the two sound mixes up
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