# 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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