Electronics Terms and Definitions Part 1

LINEAR WAVE SHAPING

Changing the shape of a sinusoidal signal by passing it through a series of linear circuits

PEAKING

Changing pulses to spikes

RAMSAUER EFFECT

The low attenuation of slowing electrons by inert gasses

WIEN MAXWELL BRIDGE

Measures an unknown inductance with a given capacitance

ANDERSON BRIDGE

SCHERING BRIDGE

Useful in measuring capacitance and also in measuring insulating properties for phase angle of very nearly 90⁰

RESISTANCE GROUNDING

Use when the voltage is from 3.3kv to 11kv

SOLID/ SOIL GROUNDING

Use when the voltage is below 660v

 FRENKELL EFFECT

SELENIUM

Has a 1v drop

JAMES CLERK MAXWELL

Electromagnetic radiation

WEBER

S.I. unit of magnetic flux

HALL EFFECT

Can be used to determine if p-type or n-type

ISOTOPES

Atoms which has the same number of protons but different number of neutrons

HYSTERESIS

Causes a lagging effect

CRITICAL RESISTANCE

Causes the square root of the resistance to be zero

MEGGER

Use to measure high resistances

·         Maximum electrons in the valence shell is 8

LEAD ACID

2.1V

GAUSS LAW

The total electric flux extending from a closed surface is equal to the algebraic sum of the charges inside the closed surface

DEAD SHORT

- Most dangerous short

- short ckt having minimum resistance

CORONA

SWINBURNE

Most economical

BRAVAIS LATTICE

SILVER ZINC

Used for emergency purposes

LECLANCHE CELL

Most common dry cell

WESTON CELL

Used as a reference cell

ELECTROLUMINISENCE

Conversion of electrical energy into light energy

CERAMIC

Capacitor used for high frequencies

ELECTROLYTIC BATTERY

Undergoes an electrochemical process

dead space - refers to the possibility that till the input increases beyond a certain value, the output does not change in some instrument.

step input - represents a sudden, instantaneous and finite change in the input.

parabolic input - represents an input signal which is proportional to the square of the time and hence represent a constant acceleration.

speed of response - the rapidity at which a system responds to the
change in the quantity being measured.

fidelity - indicates how much faithfully the system responds to the change in the input.

measuring lag - retardation or delay in the response of the system.

gross error or personal error - error which mainly occurs due to carelessness or lack of experience of human being.

0.5% to 1% - the accuracy obtained by using a Wien bridge.

systematic error - error due to the short comings of the instrument and the charateristics of the materials used in the instrument.

random error - error in the instrument which cannot be corrected by any method of calibration or other methods of control as the causes of such errors are unknown.

wheatstone bridge - simplest type of bridge used to measure medium resistances.

1 ohm to few mega ohms - range measured by wheatstone bridge.

0.05% to 0.2% (both in positive & negative) - in a Kelvin's double bridge, with resistance range from 10 ohms to 100 micro ohms, ___ tolerance. (something like this, forgot the whole question)

Maxwell's bridge - type of bridg used to measure unknown inductance using the known capacitance.

grounding and shielding - used to... of stray capacitances (minimize the effect ata yun)

3 to 6 inches - original diameter of silicon wafer before processing.

Film IC - IC whose components consist of passive elements either resistor or capacitor.

Multivibrators - output is not sonusoidal.

Oscillators - dc power to ac power at predetermined frequency.

Maxwell-Wien bridge - is a modified Anderson bridge.