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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.
KINEMATIC CHAIN : Refers to an assembly of rigid bodies connected by joints that is the mathematical model for a mechanical system. As in the familiar use of the word chain, the ri
1. What do you understand by diffraction of waves? Explain why the diffraction of sound is more easily observable than the diffraction of light? 2. The wavelength of two spectra
Roche limit: The position about a massive body where the tidal forces because of the gravity of the primary equivalent or exceed the surface gravity of a particular satellite.
Resistance in Series: In such a combination the resistors give a single path to the passage of current and similar current passes by each of the resistors.
trying to find out what matter stands for such as M=mass but do not know the other letters
The density of gasoline at 0 degrees C is 0.68 x103 kg/m3 What is the density on a hot day when the temperature is41 degrees C? What is the percentage change (+/-)?
If electrons are treated as classical particles,which statistics will they follow?
A steel wire in a piano has a length of 0.6000 m and a mass of 3.600 10 -3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to
Human Eye: It is spherical in shape, diameter about 2.5 cm, having of three layers. a) Sclera b) Choroid
comparison of magnetic moments using an vibrational magnetometer
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