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What is meant by dielectric heating?
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Mar 11, 2018
by
anonymous
What is meant by dielectric heating?
dielectric
heating
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asked
Apr 28, 2018
by
anonymous
The frequencies and voltage used in Dielectric heating are
The frequencies and voltage used in Dielectric heating are (A) 10 – 30 MHz, upto 25 kV (B) 50 – 60 Hz, upto 25 kV (C) 10 – 30 MHz, upto 100 V (D) 50 – 60 Hz, 110 V – 230 V
Last answer:
The frequencies and voltage used in Dielectric heating are 10 – 30 MHz, upto 25 kV
frequencies
voltage
used
dielectric
heating
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asked
Mar 11, 2018
by
anonymous
What is meant by resistance heating?
What is meant by resistance heating?
resistance
heating
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asked
Mar 11, 2018
by
anonymous
What is the difference between an insulator and a dielectric?
What is the difference between an insulator and a dielectric?
Last answer:
Dielectric is the another name for insulator.
difference
between
insulator
dielectric
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asked
Apr 29, 2018
by
anonymous
The range of frequencies used in induction heating is :
The range of frequencies used in induction heating is : (A) 0-25 Hz (C) less than 200 Hz (B) 50 to 100 Hz (D) more than 1 kHz
Last answer:
The range of frequencies used in induction heating is : more than 1 kHz
range
frequencies
used
induction
heating
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1
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asked
Mar 11, 2018
by
anonymous
Is induction heating safe?
Is induction heating safe?
induction
heating
safe
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asked
Apr 25, 2018
by
anonymous
Dielectric loss in a capacitor is best measured by
Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge
Last answer:
Dielectric loss in a capacitor is best measured by Schering Bridge
dielectric
loss
capacitor
measured
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asked
Sep 4, 2018
by
anonymous
What is dielectric strength of an insulating material? What is its unit?
What is dielectric strength of an insulating material? What is its unit?
Last answer:
Dielectric Strength: The dielectric strength of an insulating material is the maximum voltage which the insulating medium can withstand without breakdown. Unit is volts per millimeter (V/mm), or kV/mm or kV/cm
dielectric
strength
insulating
material
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asked
Mar 10, 2018
by
anonymous
What is dielectric breakdown strength?
What is dielectric breakdown strength?
dielectric
breakdown
strength
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asked
Mar 10, 2018
by
anonymous
What is dielectric withstand voltage?
What is dielectric withstand voltage?
dielectric
voltage
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asked
Apr 30, 2018
by
anonymous
_________ is used for heating non -conducting materials.
_______ is used for heating non -conducting materials. (1) Eddy current heating (2) Arc heating (3) Induction heating (4) Dielectric heating
Last answer:
Dielectric heating is used for heating non -conducting materials.
heating
non-conducting
materials
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asked
Mar 6, 2018
by
anonymous
can induction heating is use for both magnetic and non magnetic material ?
Last answer:
Yes, Induction heating is used for both magnetic and non-magnetic materials.
induction
heating
magnetic
non
material
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76
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1
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asked
May 7, 2020
by
anonymous
Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.
Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.
Last answer:
Parts Insulating Materials Insulation between heating element and base plate of electric iron. Mica Insulation used over copper or aluminium conductor used for making coils. ... Transformer bushings Porcelain Insulation between transmission line and pole. Porcelain
heating
element
and
base
plate
of
electric
iron
ii
used
over
copper
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1
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asked
Aug 17, 2019
by
anonymous
State advantages of electric heating over other types of heating methods.
State advantages of electric heating over other types of heating methods.
Last answer:
Advantages of Electric heating over the other types of heating methods: 1. It can be put into service immediately. 2. No standby losses. 3. High efficiency. 4. More economical ... low attention and supervision. 14. Protection against overheating can be provided by suitable switch gear.
electric
heating
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141
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2
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asked
Jul 30, 2019
by
anonymous
Enlist any four advantages of induction heating.
Enlist any four advantages of induction heating.
Last answer:
Advantages of Induction heating https://youtu.be/RcdH_74VJz0
induction
heating
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2
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asked
Mar 19, 2018
by
anonymous
In order that current should flow without causing excessive heating or voltage drop, the relay contacts should?
Last answer:
In order that current should flow without causing excessive heating or voltage drop, the relay contacts should have low contact resistance, be clean and smooth, be of sufficient size and proper shape.
current
excessive
heating
voltage
drop
relay
contacts
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112
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1
answer
asked
Apr 28, 2018
by
anonymous
The bridge most suited for accurate measurement of relative permittivity of dielectric materials is
The bridge most suited for accurate measurement of relative permittivity of dielectric materials is (A) Carey Foster Bridge (B) Anderson’s bridge (C) Heaviside Bridge modified by Campbell. (D) Schering Bridge.
Last answer:
The bridge most suited for accurate measurement of relative permittivity of dielectric materials is Schering Bridge.
bridge
accurate
measurement
relative
permittivity
dielectric
materials
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86
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1
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asked
Mar 19, 2018
by
anonymous
The dielectric strength of transformer oil is expected to be?
The dielectric strength of transformer oil is expected to be?
Last answer:
The dielectric strength of transformer oil is expected to be 33 kV.
dielectric
strength
transformer
oil
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120
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1
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asked
Apr 16, 2020
by
anonymous
Define Dielectric Strength for transformer oil. State its value for new transformer oil.
Define Dielectric Strength for transformer oil. State its value for new transformer oil.
define
dielectric
strength
for
transformer
oil
state
its
value
new
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asked
Aug 4, 2019
by
anonymous
Write one application for the give dielectric material. (i) Polyvinyl Carbide(PVC) (ii) Glass (iii) Mica (iv) Cotton and Silk
Write one application for the give dielectric material. (i) Polyvinyl Carbide(PVC) (ii) Glass (iii) Mica (iv) Cotton and Silk
Last answer:
(i) Polyvinyl Carbide(PVC):it is used in insulation of wires and cables in domestic wiring as well as in aircraft and factory wiring (any one) (ii) Glass: 1) Alkaline glasses are used for ... with wax or varnishes are used in windings of magnet coils and small medium sized mechanics (any one)
dielectric
material
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59
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1
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asked
Aug 4, 2019
by
anonymous
State any four dielectric materials.
State any four dielectric materials.
Last answer:
Ceramics, distilled water, paper, mica, polyethylene, and glass. Metal oxides
dielectric
materials
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1
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asked
Sep 4, 2018
by
anonymous
Define : (i) Dielectric strength (ii) Breakdown voltage
Define : (i) Dielectric strength (ii) Breakdown voltage
Last answer:
(i) Dielectric strength: The voltage which a dielectric material can withstand without breaking down (without losing its dielectric property) is called its dielectric strength. It is represented by kV/mm ... or is no longer an insulator) for a specified thickness, is its breakdown voltage.
dielectric
strength
breakdown
voltage
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asked
Apr 30, 2018
by
anonymous
The power factor of dielectric :
The power factor of dielectric : (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)
Last answer:
The power factor of dielectric : (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)
power
factor
dielectric
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1
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asked
May 20, 2018
by
anonymous
Dielectric heating is used for heating
Dielectric heating is used for heating A) Wood B)Aluminium C) Magnetic steel D) Copper
Last answer:
Dielectric heating is used for heating Wood
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64
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1
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asked
May 25, 2018
by
anonymous
The normal voltage for dielectric heating is
The normal voltage for dielectric heating is (a) 1500 V (b) 11 kV (c) 33 kV (d) 66 kV
Last answer:
66kv
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558
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1
answer
asked
Nov 13, 2018
by
anonymous
Principle of dielectric heating furnace
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asked
Oct 13, 2018
by
anonymous
Applications of Dielectric Heating
Applications of Dielectric Heating
Last answer:
.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
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2
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asked
Oct 12, 2018
by
anonymous
State any two applications of each for the following types of electrical heating : (i) Direct resistance heating(ii) Indirect induction heating (iii) Direct.arc heating (iv) Dielectric heating
State any two applications of each for the following types of electrical heating : (i) Direct resistance heating(ii) Indirect induction heating (iii) Direct.arc heating (iv) Dielectric heating
Last answer:
(i) Direct resistance heating:- 1. This type of heating used for industrial purpose 2. Salt bath heating: This utilized for the purpose of carbonizing, tempering, quenching and hardening of steel tools 3. ... purpose. 14)In foundry for heating of sand, core, which are used in molding processes.
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141
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1
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asked
May 20, 2018
by
anonymous
For induction heating, which of the following is abnormally high?
For induction heating, which of the following is abnormally high? A)Voltage B) Current C) Frequency D) Phase angle
Last answer:
For induction heating, which of the following is abnormally high? A)Voltage B) Current C) Frequency D) Phase angle
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181
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1
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asked
May 25, 2018
by
anonymous
For heating a magnetic material using induction heating, the hysteresis and eddy current losses are
For heating a magnetic material using induction heating, the hysteresis and eddy current losses are respectively proportional to (a) f and f 2 (b) f 2 and f (c) f and f (d) none of the above
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Jan 18
by
anonymous
What is meant by ‘Capital Gain’ ? (1) Part of profits added to the capital (2) Appreciation in the money value of assets (3) Additions to the capital invested in a business (4) None of these
What is meant by ‘Capital Gain’ ? (1) Part of profits added to the capital (2) Appreciation in the money value of assets (3) Additions to the capital invested in a business (4) None of these
Last answer:
Appreciation in the money value of assets
economics
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3
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1
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asked
Jan 16
by
anonymous
What is meant by the term “midnight sun” ? (1) Twilight (2) Rising Sun (3) Very bright moon (4) Sun shining in the polar circle for long time
What is meant by the term “midnight sun” ? (1) Twilight (2) Rising Sun (3) Very bright moon (4) Sun shining in the polar circle for long time
Last answer:
Sun shining in the polar circle for long time
physical-geography
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4
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1
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asked
Jan 13
by
anonymous
What is meant by Isthmus? (1) Mouth of a river where it joins the sea (2) Narrow strip of water dividing two land masses (3) Narrow strip of land dividing two oceans (4) Narrow strip of land connecting two large areas of land
What is meant by Isthmus? (1) Mouth of a river where it joins the sea (2) Narrow strip of water dividing two land masses (3) Narrow strip of land dividing two oceans (4) Narrow strip of land connecting two large areas of land
Last answer:
Narrow strip of land dividing two oceans
physical-geography
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12
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1
answer
asked
Aug 2, 2019
by
anonymous
What is meant by nuclear Fission ?
What is meant by nuclear Fission ?
Last answer:
Nuclear Fission:- The process in which heat energy is released without using oxygen for combustion in process is known as nuclear Fission.
nuclear
fission
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48
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1
answer
asked
Sep 6, 2018
by
anonymous
What is meant by energy meter constant?
What is meant by energy meter constant?
Last answer:
Energy Meter Constant A fixed value which is used when converting meter readings to actual energy use, especially when potential transformers and similar types of equipment are used in metering. For example, K=--------rev/Kwh
energy
meter
constant
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59
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1
answer
asked
May 30, 2018
by
anonymous
What is meant by Biot Savart law?
What is meant by Biot Savart law?
Last answer:
Module 3 : MAGNETIC FIELD Lecture 15 : Biot- Savarts' Law Objectives In this lecture you will learn the following Study Biot-Savart's law Calculate magnetic field of induction due to some simple ... other circuit. NPTEL Distributed under Creative Commons Attribution-ShareAlike - CC BY-SA.
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241
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2
answers
asked
May 25, 2018
by
anonymous
What is meant by brand resonance?
What is meant by brand resonance?
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48
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0
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asked
May 25, 2018
by
anonymous
What is meant by resonance?
What is meant by resonance?
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53
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0
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asked
May 13, 2018
by
anonymous
What is meant by devoted computer ____.
What is meant by devoted computer ____. a) Which uses only one kind of software b) Which is used by only one person c) Which is assigned with only one task d) No such type of computers are available
Last answer:
What is meant by devoted computer ____. a) Which uses only one kind of software b) Which is used by only one person c) Which is assigned with only one task d) No such type of computers are available
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449
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1
answer
asked
Mar 22, 2018
by
anonymous
What is meant by bias stabilization?
bias
stabilization
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40
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0
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asked
Mar 22, 2018
by
anonymous
What is meant by biasing a device?
biasing
device
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56
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0
answers
asked
Mar 19, 2018
by
anonymous
What is meant by firing angle of thyristor?
What is meant by firing angle of thyristor?
Last answer:
The point at which SCR is triggered is known as firings angle of thyristor.
firing
angle
thyristor
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173
views
1
answer
asked
Mar 19, 2018
by
anonymous
What is meant by pinch off voltage in MOSFET?
What is meant by pinch off voltage in MOSFET?
pinch
off
voltage
mosfet
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72
views
0
answers
asked
Mar 19, 2018
by
anonymous
What is meant by body effect in MOSFET?
What is meant by body effect in MOSFET?
body
effect
mosfet
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50
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0
answers
asked
Mar 10, 2018
by
anonymous
What is meant by fuzzy system?
What is meant by fuzzy system?
fuzzy
system
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51
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0
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asked
Mar 10, 2018
by
anonymous
What is meant by extra high voltage transmission?
What is meant by extra high voltage transmission?
Last answer:
HT & LT two types transmission in industrial line
extra
high
voltage
transmission
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92
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1
answer
asked
Mar 10, 2018
by
anonymous
What is meant by feedback in electronics?
What is meant by feedback in electronics?
feedback
electronics
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88
views
0
answers
asked
Mar 10, 2018
by
anonymous
What is meant by 3db frequency?
What is meant by 3db frequency?
3db
frequency
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51
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0
answers
asked
Mar 10, 2018
by
anonymous
What is meant by flash over voltage?
What is meant by flash over voltage?
flash
over
voltage
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54
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0
answers
asked
Mar 10, 2018
by
anonymous
What is meant by distortion in amplifiers?
What is meant by distortion in amplifiers?
distortion
amplifiers
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159
views
0
answers
asked
Mar 10, 2018
by
anonymous
What is meant by stabilization in transistor?
What is meant by stabilization in transistor?
stabilization
transistor
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50
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0
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