Is electric potential zero when electric field is zero?
Last Answer : Yes .If electric field is zero then electric potential is zero , not even one.
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Mar 14, 2018
by
anonymous

Briefly describe the electric field of a static charge.
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0 answers
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Jun 29, 2019
by
anonymous

The ability of materials to become polarized under an applied electric field is called _______ A) Ferroelectricity B) Paraelectricity C) Polectricity D) None of these
Last Answer : The ability of materials to become polarized under an applied electric field is called Paraelectricity
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148 views
1 answer
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Apr 29, 2018
by
anonymous

The electric field inside a hollow conducting sphere ________ A) Depends on the diameter of the sphere B) Varies according to the direction of earth’s magnetic poles C) Is zero D) None of these
Last Answer : The electric field inside a hollow conducting sphere Is zero
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135 views
1 answer
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Apr 29, 2018
by
anonymous

What is the direction of the induced electric field?
Last Answer : It is in opposite direction to the one that produced it.
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78 views
1 answer
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Mar 14, 2018
by
anonymous

What is the direction of the electric field?
Last Answer : Electric field is at right angle widh flow of current (right hand rule).
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127 views
1 answer
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Mar 14, 2018
by
anonymous

MOSFET uses the electric field of?
Last Answer : MOSFET uses the electric field of gate capacitance.
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101 views
1 answer
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Mar 19, 2018
by
anonymous

An electric motor in which both stator field and rotor rotates with same speed is called?
Last Answer : An electric motor in which both stator field and rotor rotates with same speed is called synchronous motor.
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177 views
1 answer
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Mar 18, 2018
by
anonymous

How can a magnetic field be used to generate an electric current?
Last Answer : Magnetic field can be used to generate electric current on a condition that it is on a rate of changing magnetic flux. (Faraday's law)
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106 views
1 answer
asked
Mar 10, 2018
by
anonymous

Is Rittenhouse's mom going to face charges?
Last Answer : I certainly hope so, I feel she enabled him. And at 17, isn’t he still considered a minor?
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1 answer
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Mar 5
by
anonymous

Define the following terms related to tariff: (i) Connected load (ii) Unit consumed (iii) Fixed charges (iv) Electricity Tax
Last Answer : (i) Connected load It is the sum of the power ratings (Watts or kW or MW) of all devices and machines existing (installed) in the premises of consumer. It is used to decide the ... a percentage of the total electricity bill which includes all amounts that go to the electricity supply agency.
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1 answer
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Sep 22, 2018
by
anonymous

Last Answer : In Hopknison demand rate or two part tariff the demand rate or fixed charges are dependent upon the maximum demand of the consumer.
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76 views
1 answer
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Mar 20, 2018
by
anonymous

Last Answer : A consumer has to pay lesser fixed charges in maximum demand tariff.
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82 views
1 answer
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Mar 20, 2018
by
anonymous

Last Answer : Depreciation charges are high in case of thermal plant.
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123 views
1 answer
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Mar 20, 2018
by
anonymous

Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these
Last Answer : Which of the following has nearly zero temperature coefficient? A) Constantan B) Manganin C) Both A and B D) None of these
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82 views
1 answer
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Apr 29, 2018
by
anonymous

The magnetic factor required to reduce the residual magnetization zero is called?
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73 views
0 answers
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Mar 17, 2018
by
anonymous

advantages of negative feedback over positive feedback.
Last Answer : Advantages of negative feedback over positive feedback: 1. Higher fidelity i.e. more linear operation. 2. Highly stabilized gain. 3. Increased bandwidth i.e. improved frequency response. 4. Less ... . 8. Input and output impedance can be modified as desired. 9. Less frequency distortion.
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272 views
1 answer
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Sep 3, 2019
by
anonymous

Write advantages and disadvantages of positive and negative feedback.
Last Answer : Advantages of Positive Feedback: i) Voltage gain increases. ii) No phase shift is provided. iii) Feedback signal and input signal are in phase. iv) Input and Output voltage increases. ... ii) Feedback signal and input signal are out of phase. iii) Input and Output voltage decreases.
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4.2k views
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Sep 5, 2018
by
anonymous

Differentiate between positive and negative feedback.
Last Answer : PARAMETER POSITIVE FEEDBACK NEGATIVE FEEDBACK Overall phase shift 0° or 360° 180° Feedback and input signal Are in phase Are out of phase Input signal ... Increases Input impedance Decreases Increases Output impedance Increases Decreases
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159 views
1 answer
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Sep 5, 2018
by
anonymous

Define negative and positive feedback
Last Answer : 1. Negative feedback: Feedback in which feedback signal is out of phase with input signal and it decreases output is called negative feedback. 2. Positive feedback: Feedback in which feedback signal is in phase with input signal and it increases output is called positive feedback.
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112 views
1 answer
asked
Sep 5, 2018
by
anonymous

Is an anode positive or negative?
Last Answer : The anode is positively charged electrode.
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92 views
1 answer
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Mar 14, 2018
by
anonymous
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Why does charge flow from positive to negative?
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76 views
0 answers
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Mar 14, 2018
by
anonymous
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ln HRC fuse the time between cut-off and final current zero is called
Last Answer : ln HRC fuse the time between cut-off and final current zero is called the arcing time
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139 views
1 answer
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Apr 26, 2018
by
anonymous

Last Answer : A transformer can have regulation closer to zero on leading power factor.
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140 views
1 answer
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Mar 19, 2018
by
anonymous
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What are some positive forms of peer pressure?
Last Answer : The opposite of the ones that got you smoking and drinking and hanging around with the wrong girls when you were a kid.
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1 answer
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Mar 2
by
anonymous

How to Keep a Positive Attitude ?
Last Answer : How to Keep a Positive Attitude Keeping a positive attitude can be hard to do when you got up at the wrong side of the bed, everything seems to be going wrong and you're just irritated with ... calm. These things won't come easily, but if you are dedicated enough, you will surely find them.
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1 answer
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May 8, 2021
by
anonymous

Field intensity formula
Last Answer : Field intensity formula
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67 views
1 answer
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Jun 11, 2019
by
anonymous

Energy stored in electrostatic field of capacitance formula
Last Answer : Energy stored in electrostatic field of capacitance formula
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82 views
1 answer
asked
Jun 11, 2019
by
anonymous

What arc the errors occurring in measuring devices due to stray magnetic field and temp '? Explain how to compensate them.
Last Answer : 1. Error due to stray magnetic fields- Main magnetic field gets disturbed by external magnetic fields known as stray magnetic fields. 2. Compensation technique To avoid this error, ... resistance alloy having a negligible resistance temp coefficient in the ratio of 1:10 for pressure coil
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170 views
1 answer
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Sep 6, 2018
by
anonymous

Define junction field effect transistor (JFET) and give an example.
Last Answer : Junction Field-Effect Transistor: It is a semiconductor device having three terminals, namely Gate, Drain and Source, in which the current flow is controlled by an electric field set up by an external voltage applied ... : i) n-channel JFET and ii) p-channel JFET Examples of JFET: BFW 10, BFW 11
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216 views
1 answer
asked
Sep 5, 2018
by
anonymous

Derive an expression for energy stored in a magnetic field .
Last Answer : Expression for energy stored in a magnetic field: The energy is stored in magnetic field when current increases and return back when the current decreases. At instant t' seconds after closer of switch ... energy absorbed by the magnetic field when current increases from 0 to I amperes
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271 views
1 answer
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Sep 4, 2018
by
anonymous

Give the relation between magnetic field strength, magnetic flux density and permeability.
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84 views
0 answers
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Aug 8, 2018
by
anonymous

Define magnetic field strength and state its unit.
Last Answer : Magnetic field strength is the force experienced by a unit N-pole when placed at any point in a magnetic field is known as magnetic field strength or magnetizing force. Magnetising force or magnetic field ... unit of length is metre. So the unit of magnetic field strength is ampere turns per metre.
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109 views
1 answer
asked
Aug 8, 2018
by
anonymous

Which of the following laws relates the magnetic field to the magnitude, direction, length, and proximity of the electric current? A) Lenz’s law B) Faraday’s law C) Biot–Savart law D) None of these
Last Answer : Which of the following laws relates the magnetic field to the magnitude, direction, length, and proximity of the electric current? A) Lenz’s law B) Faraday’s law C) Biot–Savart law D) None of these
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86 views
1 answer
asked
Apr 29, 2018
by
anonymous

How to Kick a Football Field Goal
Last Answer : How to Kick a Football Field Goal There are only a few seconds left in the game, and one field goal attempt is all that stands between you and gridiron glory, or a place in the Hall of Shame. ... right kick for the right play, and get that game-winning field goal just right between the goal posts.
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6 views
1 answer

How to Plow a Field
Last Answer : How to Plow a Field Civilization began when human beings started to turn over the soil to plant food. Plowing may have come a long way since the first human beings used their hands and ... budget. With these tools, you can plow fields and help contribute to the advancement of human civilization.
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1 answer

How to Field Dress a Deer ?
Last Answer : How to Field Dress a Deer If you enjoy hunting deer, there's one important task you need to do before you can haul your prized catch back home: you'll need to field dress it. Field dressing ... you go hunting. Just follow these steps and you'll bring your prized catch home without any trouble.
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3 views
1 answer
asked
May 9, 2021
by
anonymous

Why does the magnetic field flow from north to south?
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41 views
0 answers
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May 27, 2020
by
anonymous
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State advantages of rotating field type alternators.
Last Answer : Advantages of Rotating Field Type Alternator: 1) For high-voltage alternator, large space is required to accommodate conductors with insulation, as high voltage is induced in them. If field poles are placed ... is kept rotating. 8) Rotating field is comparatively light and can run with high speed.
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141 views
1 answer
asked
May 7, 2020
by
anonymous

A magnetic circuit has effective iron length of 100 cm and it is wound with 800 turns of wire carries 1 A. Find the magnetic field strength.
Last Answer : magnetic field strength
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267 views
1 answer
asked
Mar 30, 2020
by
anonymous

In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as (1) synchronous motor (2) synchronous generator (3) asynchronous motor (4) asynchronous generator
Last Answer : In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as synchronous generator
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599 views
1 answer
asked
May 1, 2018
by
anonymous

Which of the following statements is not characteristic of a static magnetic field? (A) It is solenoidal. (B) It is conservative. (C) It has no sinks or sources. (D) Flux lines are always closed.
Last Answer : Which of the following statements is not characteristic of a static magnetic field? (A) It is solenoidal. (B) It is conservative. (C) It has no sinks or sources. (D) Flux lines are always closed.
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2.4k views
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asked
Apr 28, 2018
by
anonymous
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It is possible to increase the field flux and, at the same time, increase the speed of a d.c. motor provided its .......... is held constant.
Last Answer : It is possible to increase the field flux and, at the same time, increase the speed of a d.c. motor provided its armature current is held constant.
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172 views
1 answer
asked
Mar 26, 2018
by
anonymous

A field of force can exist only between?
Last Answer : A field of force can exist only between two ions.
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174 views
1 answer
asked
Mar 25, 2018
by
anonymous
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Last Answer : To avoid the effect of stray magnetic field in A.C. bridges we can use magnetic screening.
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149 views
1 answer
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Mar 21, 2018
by
anonymous

A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave?
Last Answer : A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of 5 Hz.
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177 views
1 answer
asked
Mar 21, 2018
by
anonymous
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Last Answer : Flashing the field of D.C. generator means creating residual magnetism by a D.C. source.
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95 views
1 answer
asked
Mar 21, 2018
by
anonymous

Last Answer : ni bondha
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429 views
2 answers
asked
Mar 20, 2018
by
anonymous

Last Answer : If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens this will make armature to take heavy current, possibly burning it.
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158 views
1 answer
asked
Mar 20, 2018
by
anonymous

Last Answer : If the field of a D.C. shunt motor gets opened while motor is running the motor will attain dangerously high speed.
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135 views
1 answer
asked
Mar 20, 2018
by
anonymous
