Basic Mathematics for Television and Radio |
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Σελίδα 296
Therefore , the equation of the sine wave becomes y = r sin 2πft To show the relationship between these abscissa scales , the sine - wave graph is repeated in Fig . 34-20 . 90 180 270 360 Degrees 1/2 πT 31/2 2πT Radians T / 4 T / 2 3T ...
Therefore , the equation of the sine wave becomes y = r sin 2πft To show the relationship between these abscissa scales , the sine - wave graph is repeated in Fig . 34-20 . 90 180 270 360 Degrees 1/2 πT 31/2 2πT Radians T / 4 T / 2 3T ...
Σελίδα 297
Sine wave ( 1 ) Sine wave ( 2 ) Sine wave ( 3 ) y = r sin wt y = r sin ( wt - α ) y = r sin ( wt + B ) E If a sine wave of voltage e = sin wt is impressed across the ter- minals of a pure resistance , the cur- rent is i I sin wt .
Sine wave ( 1 ) Sine wave ( 2 ) Sine wave ( 3 ) y = r sin wt y = r sin ( wt - α ) y = r sin ( wt + B ) E If a sine wave of voltage e = sin wt is impressed across the ter- minals of a pure resistance , the cur- rent is i I sin wt .
Σελίδα 300
If a horizontal axis is drawn through the point y 0.5 , the sine squared curve is a sine wave of twice the ... The sum of the ordinates of the sine squared and cosine squared waves is always one , so that the curve for this sum is the ...
If a horizontal axis is drawn through the point y 0.5 , the sine squared curve is a sine wave of twice the ... The sum of the ordinates of the sine squared and cosine squared waves is always one , so that the curve for this sum is the ...
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CHAPTER PAGE 1 ADDITION SUBTRACTION MULTIPLICATION AND DIVISION IN ARITHMETIC | 3 |
DEFINITIONS AND SYMBOLS | 12 |
INVOLUTION AND EVOLUTION IN ARITHMETIC | 15 |
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algebraic angle answer applied arithmetic Axiom base called Chapter Check circle circuit circumference coefficient common complex condition Construct COROLLARY curve decimal definition denominator difference direction distance divided division Draw drawn electrical engineering equal equation example exponent expression fact factor figure formula fraction frequency functions geometry given greater illustrated inches indicated involved length letters logarithms magnitude mathematical means measure method Multiply necessary negative Note obtained ohms operation parallel perpendicular places polygon positive possible practice Problems Prove quadratic quantity quotient radio radius ratio represented resistance result right angle root rule shown sides similar Simplify sine solution Solve square statement straight line substituted subtract Theorem triangle unit unknown usually vertical voltage volts wave zero