Basic Mathematics for Television and RadioPrentice-Hall, 1953 - 405 σελίδες |
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Σελίδα 140
... radio - tube filament ? 9. How many amperes will flow through the windings of a dynamic loud- speaker coil of 3200 ohms when the coil is placed across a 120 - volt circuit ? 10. If the current is 2.75 amperes , how much resistance must ...
... radio - tube filament ? 9. How many amperes will flow through the windings of a dynamic loud- speaker coil of 3200 ohms when the coil is placed across a 120 - volt circuit ? 10. If the current is 2.75 amperes , how much resistance must ...
Σελίδα 297
... radio , approximate the conditions of this paragraph . If this sine wave of voltage is impressed across the terminals of a pure inductance , the current is 90 ° or π / 2 radians behind the voltage . The current is said to lag the ...
... radio , approximate the conditions of this paragraph . If this sine wave of voltage is impressed across the terminals of a pure inductance , the current is 90 ° or π / 2 radians behind the voltage . The current is said to lag the ...
Σελίδα 335
George Frederick Maedel. CHAPTER 37 Mathematics Applied to Television and Radio Maintenance , Analysis and Design Introduction . Mathematics cannot , by itself , teach television and radio . Understanding these systems requires an ...
George Frederick Maedel. CHAPTER 37 Mathematics Applied to Television and Radio Maintenance , Analysis and Design Introduction . Mathematics cannot , by itself , teach television and radio . Understanding these systems requires an ...
Περιεχόμενα
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