Related Questions

A point B on a rigid link AB moves with respect to A with angular velocity $$\omega $$ rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)
A vBA × AB
B $$\frac{{{\text{vBA}}}}{{{\text{AB}}}}$$
C v2BA
D $$\frac{{{{\text{v}}^2}{\text{BA}}}}{{{\text{AB}}}}$$
A phasor represents
A The magnitude and a quantity direction
B The width of a quantity
C The phase angle
D The magnitude of a quantity
A complex number represents a phasor quantity.
A True
B False
The length of a phasor represents the amplitude.
A True
B False
When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ .
A Reflection
B Refraction
C Transmission
D None of the above
If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, the body is said to be in __________ equilibrium.
A Neutral
B Stable
C Unstable
D None of these
A point B on a rigid link AB moves with respect to A with angular velocity $$\omega $$ rad/s. The total acceleration of B with respect to A will be equal to
A Vector sum of radial component and Coriolis component
B Vector sum of tangential component and Coriolis component
C Vector sum of radial component and tangential component
D Vector difference of radial component and tangential component
In a two phasor servomotor, the direction of rotation of the rotating field depends on
A Magnitudes of voltages applied to the two stator windings
B Phase relation of voltages applied to the two stator windings
C Both magnitude and phase relationship of voltages applied to the two stator windings
D None of the above
A phasor is
A A line which represents the magnitude and phase of an alternating quantity
B A line representing the magnitude and direction of an alternating quantity
C A colored tag or band for distinction between different phases of a 3-phase supply
D An instrument used for measuring phases of an unbalanced 3-phase load
For a sine wave with peak value Imax the r.m.s. value is
A 0.5 Imax
B 0.707
C 0.9
D 1.414 Imax

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