1. A current is given by i = 22.62sin (377t) A. Determine a) maximum value; b) rms value; c) frequency; d) radians through which its vector has gone when t = 0.01 sec; e) degrees in (d); f) value of current at instant in (d).

1. A current is given by i = 22.62sin (377t) A. Determine a) maximum value; b) rms value; c) frequency; d) radians through which its vector has gone when t = 0.01 sec; e) degrees in (d); f) value of current at instant in (d).

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.3MCQ: If a phasor representation of a current is given by I=70.745A, it is equivalent to a. 100e/45 b....

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Concept explainers

Gradient of a Scalar Field

Consider a room or a place where the temperature is denoted by a scalar field T, such that at each point (x, y, z), the temperature is given as T(x, y, z). It is independent of time, in which the temperature rises most quickly. The gradient of T will show the direction at that point by moving away from (x, y, z). How far will the rise in temperature in that direction be determined by the gradient magnitude? Consider a surface that has a height above sea level at point (x, y) which is given by H(x, y). At that point, pointing in the direction of the steepest slope or grade is the gradient of H. The magnitude of the gradient of the vector gives the steepness of the slope at that point. How a scalar field changes in another direction can be measured by the gradient by taking a dot product rather than just the direction of the greatest change?

Question

A current is given by i = 22.62sin (377t) A. Determine a) maximum value;
b) rms value; c) frequency; d) radians through which its vector has gone
when t = 0.01 sec; e) degrees in (d); f) value of current at instant in (d).

1. A current is given by i = 22.62sin (377t) A. Determine a) maximum value;
b) rms value; c) frequency; d) radians through which its vector has gone
when t = 0.01 sec; e) degrees in (d); f) value of current at instant in (d).

Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.

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Instruction: Provide the correct answer. 1. What is the relationship between the supply voltage and circuit current in purely capacitive circuits? 2. Vm = 100cos(377t + 75°) transform into sine form is a complex number that represents the amplitude and phase of a sinusoid. 3. 4. What is the phase relationship between a supply voltage and current through a purely inductive circuit? . 5. The rms value of the signal is also called the