Basic Mathematics for Television and RadioPrentice-Hall, 1953 - 405 σελίδες |
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Σελίδα 22
... ( ampere ) , one is 60 watts ( ampere ) , one is 75 watts ( ampere ) , and one is 100 watts ( ampere ) . ( a ) How much current flows ? ( b ) What is the total number of watts ? 16. Enough lamps are lighted to have 29 amperes flowing . If ...
... ( ampere ) , one is 60 watts ( ampere ) , one is 75 watts ( ampere ) , and one is 100 watts ( ampere ) . ( a ) How much current flows ? ( b ) What is the total number of watts ? 16. Enough lamps are lighted to have 29 amperes flowing . If ...
Σελίδα 140
... amperes when the voltage is 5 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 ...
... amperes when the voltage is 5 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 ...
Σελίδα 142
... amperes ; the output is 4890 volt - amperes . What is the efficiency of the transformer ? 29. A dynamic loudspeaker has an input of 400 milliwatts and an output of 35 milliwatts . What is the efficiency ? 30. A properly designed horn ...
... amperes ; the output is 4890 volt - amperes . What is the efficiency of the transformer ? 29. A dynamic loudspeaker has an input of 400 milliwatts and an output of 35 milliwatts . What is the efficiency ? 30. A properly designed horn ...
Περιεχόμενα
CHAPTER PAGE 1 ADDITION SUBTRACTION MULTIPLICATION AND DIVISION IN ARITHMETIC | 3 |
DEFINITIONS AND SYMBOLS | 12 |
INVOLUTION AND EVOLUTION IN ARITHMETIC | 15 |
Πνευματικά δικαιώματα | |
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a-c circuit adjacent angles algebraic amperes answer arithmetic Axiom base bisector called Chapter Check chord circle circumference coefficient complex numbers Construct COROLLARY cosine curve decibel decimal point denominator diameter distance divided division divisor Draw engineering equal example exponent expression factor figure formula fraction frequency functions geometry given graph impedance inches inscribed interior angles isosceles logarithms magnitude mathematical measure monomial Multiply negative number nth root obtained Ohm's law ohms parallel parallelogram perpendicular polygon polynomial positive Postulate Problems Prove quadratic quantity quotient R₁ radians radio radius ratio reactance regular polygon represented resistance resistor resonant right angle right triangle rotation Simplify sine wave slide rule solution Solve the equation square root straight line subtract tangent Theorem triangle ABC trigonometric functions trigonometry unit vector vertex vertical voltage volts zero