Which quantity remains constant in a step-down transformer? -Do You Know?

Which quantity remains constant in a step-down transformer? -Do You Know?
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Which quantity remains constant in a step-down transformer? -Do You Know?

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Which quantity remains constant in a step-down transformer? -Do You Know?

Description : Which quantity remains constant in a step-down transformer? -Do You Know?

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Which quantity remains constant in a step-down transformer? -Do You Know?

Description : Which quantity remains constant in a step-down transformer? -Do You Know?

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Which quantity remains constant in a step-down transformer? -Do You Know?

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Which quantity remains constant in a step-down transformer? -Do You Know?

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Which quantity remains constant in a step-down transformer?

Description : Which quantity remains constant in a step-down transformer?

Last Answer : Power

If Wilson Sporting Goods faces the classic demand curve characteristic for most products, as it raises the price of its tennis rackets, the: A)quantity demand goes down. B)demand remains constant. C)quantity demands increases.

Description : If Wilson Sporting Goods faces the classic demand curve characteristic for most products, as it raises the price of its tennis rackets, the: A)quantity demand goes down. B)demand remains constant. C)quantity demands increases.

Last Answer : A)quantity demand goes down.

What is the quantity that remains unchanged in a transformer?

Description : What is the quantity that remains unchanged in a transformer?

Last Answer : Frequency

The value of which quantity remains same in all system of units? -Do You Know?

Description : The value of which quantity remains same in all system of units? -Do You Know?

Last Answer : answer:

When the rate of flow of charge through a metallic condoctor of non-uniform cross-section is uniform, then the quantity that remains constant along th

Description : When the rate of flow of charge through a metallic condoctor of non-uniform cross-section is uniform, then the quantity that remains constant along th

Last Answer : When the rate of flow of charge through a metallic condoctor of non-uniform cross-section is ... . electric field C. electric potential D. current

Which of the following statements is incorrect? (a) The mass of a body is not the same as its weight (b) Mass is a measure of quantity of matter whereas weight is a force (c) Mass of a body varies from place to place but its weight remains constant (d) In the MKS system, mass is expressed in kilogram and weight in newton

Description : Which of the following statements is incorrect? (a) The mass of a body is not the same as its weight (b) Mass is a measure of quantity of matter whereas weight is a force (c) Mass of a ... but its weight remains constant (d) In the MKS system, mass is expressed in kilogram and weight in newton

Last Answer : Ans:(c)

In an actual transformer the iron loss remains practically constant from no load to full load because?

Description : In an actual transformer the iron loss remains practically constant from no load to full load because?

Last Answer : In an actual transformer the iron loss remains practically constant from no load to full load because core flux remains practically constant.

What is the way to understand transformer step up or step down ?

Description : What is the way to understand transformer step up or step down ?

Last Answer : How to understand the step-up or step-down of a transformer: If the number of patches on the secondary side is more than the primary side of the transformer, then that transformer is a step-up ... than the primary side of the transformer, then that transformer is a step down transformer.

How do I step down a step up transformer ?

Description : How do I step down a step up transformer ?

Last Answer : If we want to step up a transformer, we need to punch more of the secondary coil than the number of punches of the primary coil of the transformer. And in order to determine the number of these ... already been written on our electronics site, I did not repeat it. Read the article from this link.

What is a descending or step down transformer ?

Description : What is a descending or step down transformer ?

Last Answer : A transformer that converts a low current of high voltage to a high current of low voltage is called a descending or step down transformer.

What is a step down transformer ?

Description : What is a step down transformer ?

Last Answer : If you get low voltage with high voltage supply, it is called step down transformer.

When used for taking resistance measurements, a volt-ohm-milliammeter is normally powered by _____________. A. a hand cranked generator B. internal storage batteries C. the current in the circuit being tested D. a step down transformer

Description : When used for taking resistance measurements, a volt-ohm-milliammeter is normally powered by _____________. A. a hand cranked generator B. internal storage batteries C. the current in the circuit being tested D. a step down transformer

Last Answer : Answer: B

What can be used to replace the exciter in the circuit shown in the illustration? EL-0101 A. A step-up transformer. B. A rectifier. C. A step-down transformer. D. An operational amplifier.

Description : What can be used to replace the exciter in the circuit shown in the illustration? EL-0101 A. A step-up transformer. B. A rectifier. C. A step-down transformer. D. An operational amplifier.

Last Answer : Answer: B

When a transformer is used to step down voltage, the low voltage winding is _____________. A. part of the core B. the primary coil C. not insulated D. the secondary coil

Description : When a transformer is used to step down voltage, the low voltage winding is _____________. A. part of the core B. the primary coil C. not insulated D. the secondary coil

Last Answer : Answer: D

What is the maximum current allowed to be drawn from the secondary of a 2 KVA step-down transformer with a turns ratio of four to one if connected across a 440 volt line? A. 1.1 amps B. 4.5 amps C. 18.1 amps D. 22.7 amps

Description : What is the maximum current allowed to be drawn from the secondary of a 2 KVA step-down transformer with a turns ratio of four to one if connected across a 440 volt line? A. 1.1 amps B. 4.5 amps C. 18.1 amps D. 22.7 amps

Last Answer : Answer: C

What is the maximum allowable primary current of a 2 KVA step-down transformer with a four to one turns ratio if connected across a 440 volt line? A. 1.1 amps B. 4.5 amps C. 18.1 amps D. 27.7 amps

Description : What is the maximum allowable primary current of a 2 KVA step-down transformer with a four to one turns ratio if connected across a 440 volt line? A. 1.1 amps B. 4.5 amps C. 18.1 amps D. 27.7 amps

Last Answer : Answer: B

What are the applications of step-up & step-down transformer?

Description : What are the applications of step-up & step-down transformer?

Last Answer : A:Step-up transformers are used in generating stations. Normally the generated voltage will be either 11kV. This voltage (11kV) is stepped up to 110kV or 220kV or ... and made available at consumer premises. The transformers used at generating stations are called power transformers.

What is transformation ratio for step up, step down and isolation transformer?

Description : What is transformation ratio for step up, step down and isolation transformer?

Last Answer : K>1 for step up transformer K

What is a step down transformer?

Description : What is a step down transformer?

Last Answer : A transformer which decreases the input voltage of the AC source is called step down transformer.

If output voltage is greater than input voltage, then transformer is A. step up B. step down C. faulty D. fatal

Description : If output voltage is greater than input voltage, then transformer is A. step up B. step down C. faulty D. fatal

Last Answer :  step up

In step down transformer, the AC output gives the current _________ than the input current.

Description : In step down transformer, the AC output gives the current _________ than the input current.

Last Answer : more

Which of the following devices will receive voltage surge first travelling on the transmission line ? (a) Lightning arresters (b) Relays (c) Step-down transformer (d) Switchgear

Description : Which of the following devices will receive voltage surge first travelling on the transmission line ? (a) Lightning arresters (b) Relays (c) Step-down transformer (d) Switchgear

Last Answer : (a) Lightning arresters

Does 1:5 indicate a step-up or step-down transformer?

Description : Does 1:5 indicate a step-up or step-down transformer?

Last Answer : Step up.

Does 1:5 indicate a step-up or step-down transformer?

Description : Does 1:5 indicate a step-up or step-down transformer?

Last Answer : Step up

To construct a step down transformer, the condition is: a. Ns > Np b. Np > Ns c. Np = Ns d. Np . Ns = 1

Description : To construct a step down transformer, the condition is: a. Ns > Np b. Np > Ns c. Np = Ns d. Np . Ns = 1

Last Answer : c. Np = Ns

The doorbell on your house requires a 12 volt alternating current. A transformer having a primary winding of 1,600 turns is to be used to step down your house's 110-volt alternating current. How many turns are there on the secondary winding?

Description : The doorbell on your house requires a 12 volt alternating current. A transformer having a primary winding of 1,600 turns is to be used to step down your house's 110-volt alternating current. How many turns are there on the secondary winding?

Last Answer : ANSWER: 175 TURNS 

A generator is connected through a 20 MVA, 13.8/138 kV step down transformer, to a transmission line.

Description : A generator is connected through a 20 MVA, 13.8/138 kV step down transformer, to a transmission line. At the receiving end of the line a load is supplied through a step down transformer of 10 MVA, 138/69 kV rating. A 0.72 ... load (in per unit) in generator will be (A) 36 (B) 1.44 (C) 0.72 (D) 0.18

Last Answer : A generator is connected through a 20 MVA, 13.8/138 kV step down transformer, to a transmission line. At the receiving end of the line a load is supplied through a step down transformer of 10 MVA, 138/ ... MVA and 69 kV in load circuit, the value of the load (in per unit) in generator will be 36 

A single-phase, 230 V, 50 Hz ac mains fed step down transformer (4:1) is supplying power to a half-wave

Description : A single-phase, 230 V, 50 Hz ac mains fed step down transformer (4:1) is supplying power to a half-wave uncontrolled ac-dc converter used for charging a battery (12 V dc) with the series current limiting resistor being 19.04 Ohm. The charging current is  (A) 2.43 A (B) 1.65 A (C) 1.22 A (D) 1.0 A

Last Answer : A single-phase, 230 V, 50 Hz ac mains fed step down transformer (4:1) is supplying power to a half-wave uncontrolled ac-dc converter used for charging a battery (12 V dc) with the series current limiting resistor being 19.04 Ohm. The charging current is 1.0 A

In a step-up or step-down transformer, electrical power is transferred from one circuit to another without change in

Description : In a step-up or step-down transformer, electrical power is transferred from one circuit to another without change in

Last Answer : In a step-up or step-down transformer, electrical power is transferred from one circuit to another without change in frequency

Step-down transformer converts high voltage and low current into:

Description : Step-down transformer converts high voltage and low current into:  (A) How voltage and high current (B) High voltage and low current (C) Low voltage and high current (D) None of the above

Last Answer : Step-down transformer converts high voltage and low current into: Low voltage and high current

A 1100 kVA, 11 kV/1.1 kV conventional two-winding transformer is connected as a 12.1 kV/11 kV step-down ...

Description : A 1100 kVA, 11 kV/1.1 kV conventional two-winding transformer is connected as a 12.1 kV/11 kV step-down auto-transformer. The rating of the auto-transformer is (A) 1000 kVA (B) 1100 kVA (C) 11000 kVA (D) 12100 kVA

Last Answer : A 1100 kVA, 11 kV/1.1 kV conventional two-winding transformer is connected as a 12.1 kV/11 kV step-down auto-transformer. The rating of the auto-transformer is 12100 kVA

In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of?

Description : In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of?

Last Answer : In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of less than 15A.

The tension in the wire rope supporting a lift moving with a uniform velocity a.Is more when the lift is moving upwards b.Is more when the lift is moving downwards c.Is less when the lift is moving down-wards d.Is less when the lift is moving upwards e.Remains constant irrespective of the lift movement

Description : The tension in the wire rope supporting a lift moving with a uniform velocity a.Is more when the lift is moving upwards b.Is more when the lift is moving downwards c.Is less when the lift ... down-wards d.Is less when the lift is moving upwards e.Remains constant irrespective of the lift movement

Last Answer : e. Remains constant irrespective of the lift movement

Choose the correct statement. (a) Electronegativity increases down a group (b) Electronegativity decreases down a group (c) Electronegativity decreases from left to right along a period (d) Electronegativity changes along a group, but remains constant along a period

Description : Choose the correct statement. (a) Electronegativity increases down a group (b) Electronegativity decreases down a group (c) Electronegativity decreases from left to right along a period (d) Electronegativity changes along a group, but remains constant along a period

Last Answer : Ans:(b)

Diminishing returns occurs when a firm (a) uses too much of all inputs (b) uses more and more of one input while holding another inputs constant © does not utilize its inputs efficiently (d) cut down on the quantity of all inputs it uses

Description : Diminishing returns occurs when a firm (a) uses too much of all inputs (b) uses more and more of one input while holding another inputs constant © does not utilize its inputs efficiently (d) cut down on the quantity of all inputs it uses

Last Answer : b) uses more and more of one input while holding another inputs constant

In the illustrated electronic governor, the circuit card connected to the potential and current transformers is for ________. EL-0046 A. increasing the signal strength to the governor to maintain constant engine speed with increased load B. send a kilowatt signal to the metering circuit C. shutting down the prime mover in the event of reverse power to protect from motorization D. conditioning the load through the use of a magnetic amplifier current transformer

Description : In the illustrated electronic governor, the circuit card connected to the potential and current transformers is for ________. EL-0046 A. increasing the signal strength to the governor to ... from motorization D. conditioning the load through the use of a magnetic amplifier current transformer

Last Answer : Answer: A

A catalyst remains unchanged at the end of the reaction with regard to (a) Quality (b) Chemical composition (c) Physical state (d) Quantity and chemical composition

Description : A catalyst remains unchanged at the end of the reaction with regard to (a) Quality (b) Chemical composition (c) Physical state (d) Quantity and chemical composition

Last Answer : Ans:(d)

'Law of demand' implies that when there is excess demand for a commodity, then (1) price of the commodity falls (2) price of the commodity remains same (3) price of the commodity rises (4) quantity demanded of the commodity falls

Description : 'Law of demand' implies that when there is excess demand for a commodity, then (1) price of the commodity falls (2) price of the commodity remains same (3) price of the commodity rises (4) quantity demanded of the commodity falls

Last Answer : (3) price of the commodity rises Explanation: The Law of demand states that the quantity demanded and the price of a commodity are inversely related, other things remaining constant. That is, if ... of the commodity the price starts rising and it continues to rise till equilibrium price is reached.

The value of which quantity remains same in all system of units?

Description : The value of which quantity remains same in all system of units?

Last Answer : Specific gravity

If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity (A) Is trebled (B) Remains unchanged (C) Decreases by a factor of 3 (D) Decreases by a factor of 1/3

Description : If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity (A) Is trebled (B) Remains unchanged (C) Decreases by a factor of 3 (D) Decreases by a factor of 1/3

Last Answer : (B) Remains unchanged

‘Law of demand’ implies that when there is excess demand for a commodity, then (1) price of the commodity falls (2) price of the commodity remains same (3) price of the commodity rises (4) quantity demanded of the commodity falls

Description : ‘Law of demand’ implies that when there is excess demand for a commodity, then (1) price of the commodity falls (2) price of the commodity remains same (3) price of the commodity rises (4) quantity demanded of the commodity falls

Last Answer :  price of the commodity rises

Creationists: When remains are found of species that seem to be a step between primate and human what do you think?

Description : Creationists: When remains are found of species that seem to be a step between primate and human what do you think?

Last Answer : answer:I love this major discovery! (I didn't see the video since it's kinda slow here,and I just don't have 60 minutes for that). This is a realistic evident(especially if they've ... evolved animals. I think if they've 100%ly success to prove this discovery many/all religion will torn apart.

The rating of the Transformer __ when the supply frequency is increased: a) Remains unchanged b) Increases c) Decreases d) None of the above

Description : The rating of the Transformer __ when the supply frequency is increased: a) Remains unchanged b) Increases c) Decreases d) None of the above

Last Answer : Ans: B

A 220/440 V, 50 Hz, 5 KVA, single phase transformer operates on 220V, 40Hz supply with secondary winding open circuited. Then (A) Both eddy current and hysteresis losses decreases. (B) Both eddy current and hysteresis losses increases. (C) Eddy current loss remains the same but hysteresis loss increases. (D) Eddy current loss increases but hysteresis loss remains the same.

Description : A 220/440 V, 50 Hz, 5 KVA, single phase transformer operates on 220V, 40Hz supply with secondary winding open circuited. Then (A) Both eddy current and hysteresis losses decreases. (B) Both ... same but hysteresis loss increases. (D) Eddy current loss increases but hysteresis loss remains the same.

Last Answer : (A) Both eddy current and hysteresis losses decreases.