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.

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