Basic Mathematics for Television and RadioPrentice-Hall, 1953 - 405 σελίδες |
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Σελίδα 40
... volts . eg Ip ip = 40 Milliamperes Average ip > 0 At all Times ip < 80 Milliamperes Usually eg = -5 Volts Average eg < 0 Volts Usually eg > -10 Volts Usually Fig . 8-1 . From a given point , marked 0 ( zero ) in Fig . 8-2 , a straight ...
... volts . eg Ip ip = 40 Milliamperes Average ip > 0 At all Times ip < 80 Milliamperes Usually eg = -5 Volts Average eg < 0 Volts Usually eg > -10 Volts Usually Fig . 8-1 . From a given point , marked 0 ( zero ) in Fig . 8-2 , a straight ...
Σελίδα 140
... volts , what must be the resistance of a 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 ...
... volts , what must be the resistance of a 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 ...
Σελίδα 349
... ( volts ) 100 200 300 400 Fig . 37-7 . 1 R1 or R2 to be inserted in the equation depends on the solution sought . By graphical methods , however , the solution is easy . Suppose it is desired to find the current through a nonlinear ...
... ( volts ) 100 200 300 400 Fig . 37-7 . 1 R1 or R2 to be inserted in the equation depends on the solution sought . By graphical methods , however , the solution is easy . Suppose it is desired to find the current through a nonlinear ...
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