# multiplier

## Definitions

### Accounting

### Construction

- A factor used to adjust costs for modifications, such as for location,
__time__, or __size__ of __project__.

### Economics

- noun a factor which tends to multiply something, as when the effect of new inputs such as investment is to produce a proportionately higher increase in
__national__ income

### Electronics

- A
__circuit__ or device which multiplies a number of pulses, cycles, signals, or other input quantity, by a fixed number, such as 2 or 10. For example, electron, __frequency__, or __voltage__ multipliers. - An
__electron tube__ in which secondary electron emissions produce current amplification. In it, a __cathode__ releases __primary__ electrons, which are then reflected by multiple electron mirrors, or dynodes, each producing more and more electrons. Depending on the number of dynodes, the amplification factor may be in the millions. Also called electron multiplier, or __secondary electron multiplier__. - A
__circuit__ or device whose output __signal frequency__ is an exact integer multiple of its input signal __frequency__. For example, such a circuit could __convert__ a 10 MHz signal into a 30 MHz signal with the use of a __frequency tripler__. Also called __frequency multiplier__. - A
__component__ or circuit whose __voltage__ output is a multiple of its input voltage. For example, a __rectifier circuit__ which delivers a __DC__ __output voltage__ which is a multiple of the __peak__ of its input __AC voltage__. Also called __voltage multiplier__ (1). - A
__precision__ __resistor__ utilized __in series__, to extend the __voltage__ __range__ of an instrument such as a voltmeter. Also called multiplier resistor, or voltage-range multiplier (2). - An already present number by which another is multiplied. A
__multiplicand__ is a newly introduced number which multiplies the multiplier. For instance, in 13 × 3, the multiplier is 13, while the multiplicand is 3.

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