A transformer is a device for (a) stepping up (or down) DC voltage (b) generating electricity (c) stepping up (or down) AC voltage (d) converting AC into DC

A transformer is a device for (a) stepping up (or down) DC voltage (b) generating electricity (c) stepping up (or down) AC voltage (d) converting AC into DC
by

1 Answer

Answer :

Ans:(c)
by
selected

Related questions

In addition to stepping up or stepping down the input line voltage, what additional purpose does the transformer serve?

Description : In addition to stepping up or stepping down the input line voltage, what additional purpose does the transformer serve?

Last Answer : . It isolates the chassis from the power line.

A transformer – (1) converts DC to AC (2) is used to decrease or increase AC voltage (3) converts AC voltage to D.C. voltage (4) converts electrical energy into mechanical energy

Description : A transformer – (1) converts DC to AC (2) is used to decrease or increase AC voltage (3) converts AC voltage to D.C. voltage (4) converts electrical energy into mechanical energy

Last Answer : (2) is used to decrease or increase AC voltage Explanation: Transformers have made longdistance transmission of electric power a practical reality, as AC voltage can be "stepped up" and ... the loads), voltage levels are reduced by transformers for safer operation and less expensive equipment.

A transformer – (1) converts DC to AC (2) is used to decrease or increase AC voltage (3) converts AC voltage to D.C. voltage (4) converts electrical energy into mechanical energy

Description : A transformer – (1) converts DC to AC (2) is used to decrease or increase AC voltage (3) converts AC voltage to D.C. voltage (4) converts electrical energy into mechanical energy

Last Answer : (2) is used to decrease or increase AC voltage Explanation: Transformers have made longdistance transmission of electric power a practical reality, as AC voltage can be "stepped up" and ... the loads), voltage levels are reduced by transformers for safer operation and less expensive equipment.

A transformer in an electric circuit serves to ____________. A. generate its own electrical power B. transform electrical energy into mechanical energy C. increase or decrease circuit voltage as required D. convert AC current to DC current

Description : A transformer in an electric circuit serves to ____________. A. generate its own electrical power B. transform electrical energy into mechanical energy C. increase or decrease circuit voltage as required D. convert AC current to DC current

Last Answer : Answer: C

A transformer (1) converts DC to AC (2) is used to decrease or increase AC voltage (3) converts AC voltage to D.C. voltage (4) converts electrical energy into mechanical energy

Description : A transformer (1) converts DC to AC (2) is used to decrease or increase AC voltage (3) converts AC voltage to D.C. voltage (4) converts electrical energy into mechanical energy

Last Answer : is used to decrease or increase AC voltage

Fixed assets are held by business for _____ a) Converting into cash b) Generating revenue c) Resale d) None of the above

Description : Fixed assets are held by business for _____ a) Converting into cash b) Generating revenue c) Resale d) None of the above

Last Answer : b) Generating revenue

What is the process called when converting AC to DC?

Description : What is the process called when converting AC to DC?

Last Answer : Feel Free to Answer

An electronic device used to convert AC voltage into DC voltage is called?

Description : An electronic device used to convert AC voltage into DC voltage is called?

Last Answer : Rectifier

On AC vessels, which of the following statements represents the most difficult problem involved in obtaining a DC potential suitable for use by computer components? A. A stepdown transformer is always required. B. Vessel vibrations affect the voltage source. C. The voltage must be rectified and made ripple free. D. Rectifiers cannot operate with voltage regulators.

Description : On AC vessels, which of the following statements represents the most difficult problem involved in obtaining a DC potential suitable for use by computer components? A. A stepdown transformer is ... voltage must be rectified and made ripple free. D. Rectifiers cannot operate with voltage regulators.

Last Answer : Answer: C

An AC supply of 230 V is applied to half wave rectifier circuit. A transformer turns ratio is 20 : 1. Find i) Output DC voltage (ii) Peak Inverse Voltage (PIV)

Description : An AC supply of 230 V is applied to half wave rectifier circuit. A transformer turns ratio is 20 : 1. Find i) Output DC voltage (ii) Peak Inverse Voltage (PIV)

Last Answer : Solution:

When 220V dc shunt alternator generating the voltage at rated value. If direction of rotation is reversed, then alternator will a) Build up its voltage with same polarity b) Build up its voltage with opposite polarity c) No build up of voltage d) None

Description : When 220V dc shunt alternator generating the voltage at rated value. If direction of rotation is reversed, then alternator will a) Build up its voltage with same polarity b) Build up its voltage with opposite polarity c) No build up of voltage d) None

Last Answer : Ans: No build up of voltage

The device used for converting mechanical energy into electrical energy is called a/an (a) cell (b) transformer (c) dynamo (d) electric motor

Description : The device used for converting mechanical energy into electrical energy is called a/an (a) cell (b) transformer (c) dynamo (d) electric motor

Last Answer : Ans:(c)

A device used for converting A.C. into D.C. is called – (1) Transformer (2) Rectifier (3) Induction coil (4) Dynamo

Description : A device used for converting A.C. into D.C. is called – (1) Transformer (2) Rectifier (3) Induction coil (4) Dynamo

Last Answer : (2) Rectifier Explanation: A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in ... -arc valves, solidstate diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches.

A device used for converting a.c. into d.c. is called (1) transformer (2) recticfier (3) induction coil (4) dynamo

Description : A device used for converting a.c. into d.c. is called (1) transformer (2) recticfier (3) induction coil (4) dynamo

Last Answer : recticfier

An electric tachometer receives the engine speed signal from a _______________. A. small generator mounted on the engine B. bimetallic sensing device C. stroboscopic sensing device D. vibrating reed meter generating a voltage proportionate to engine speed

Description : An electric tachometer receives the engine speed signal from a _______________. A. small generator mounted on the engine B. bimetallic sensing device C. stroboscopic sensing device D. vibrating reed meter generating a voltage proportionate to engine speed

Last Answer : Answer: A

When troubleshooting electronic equipment, you should use a high impedance multimeter ________________. A. to prevent excess current flow through the meter that would damage it B. for AC measurements only and a low resistance meter for DC measurements C. whenever a low impedance meter is not available, regardless of the components being tested D. so as not to load down the circuit and obtain erroneous voltage readings

Description : When troubleshooting electronic equipment, you should use a high impedance multimeter ________________. A. to prevent excess current flow through the meter that would damage it B. for AC measurements only ... being tested D. so as not to load down the circuit and obtain erroneous voltage readings

Last Answer : Answer: D

Is electricity generated in AC or DC?

Description : Is electricity generated in AC or DC?

Last Answer : Electricity   is  generated  in  AC.

Is it AC or DC electricity in the home?

Description : Is it AC or DC electricity in the home?

Last Answer : Obviously its A.C

Which of the following converts electric energy into mechanical energy: a. Transformer b. DC generator c. Motor d. AC generator

Description : Which of the following converts electric energy into mechanical energy: a. Transformer b. DC generator c. Motor d. AC generator

Last Answer : d. AC generato

It is more difficult to obtain good results while measuring horizontal distance by stepping (A) Up-hill (B) Down-hill (C) In low undulations (D) In plane areas

Description : It is more difficult to obtain good results while measuring horizontal distance by stepping (A) Up-hill (B) Down-hill (C) In low undulations (D) In plane areas

Last Answer : (A) Up-hill

Define process of nuclear fission. Writ the steps involved in generating electricity in a nuclear reactor. -Science

Description : Define process of nuclear fission. Writ the steps involved in generating electricity in a nuclear reactor. -Science

Last Answer : Nuclear Fission: The process in which a heavy nucleus (such as uranium, plutonium or thorium) is broken into two nearly equal fragments when bombarded with low-energy neutrons and a tremendous ... turbines producing electricity.The steam cools back into water, which can then be used over again.

What are the two main ways of generating electricity? How are they different from each other ? Explain. -SST 10th

Description : What are the two main ways of generating electricity? How are they different from each other ? Explain. -SST 10th

Last Answer : Electricity is generated by hydropower and thermal power: 1. Hydro electricity is generated by running water while thermal power is generated by burning coal, petroleum and natural gas. ... of hydro electricity production: Bhakra Nangal dam Example of thermal power production: Neyveli power plant

What are the two main ways of generating electricity? -SST 10th

Description : What are the two main ways of generating electricity? -SST 10th

Last Answer : The two main ways of generating electricity are:-

What are the two main ways of generating electricity? -SST 10th

Description : What are the two main ways of generating electricity? -SST 10th

Last Answer : The two main ways of generating electricity are :-

What is the electricity that is produced at generating?

Description : What is the electricity that is produced at generating?

Last Answer : Station

Hot water of Manikaran is used for generating electricity. It is

Description : Hot water of Manikaran is used for generating electricity. It is

Last Answer : Hot water of Manikaran is used for generating electricity. It is A. solar energy B. biomass energy C. geothermal energy D. hydroelectric energy

What the major problems associated with generating electricity using nuclear power plants?

Description : What the major problems associated with generating electricity using nuclear power plants?

Last Answer : Need answer

Find the wrong statement. • Boiler is used to produce electricity in the energy business. • Boiler is used to produce steam for generating electricity. • Boiler can pressurize the water and can also evaporate it. All are wrong.

Description : Find the wrong statement. • Boiler is used to produce electricity in the energy business. • Boiler is used to produce steam for generating electricity. • Boiler can pressurize the water and can also evaporate it. All are wrong.

Last Answer : • Boiler can pressurize the water and can also evaporate it.

For which of the following reasons is plutonium-238 used for generating electricity on spacecraft? w) It is an alpha emitter with long half-life. x) It is a beta emitter with high specific power. y) It occurs abundantly in nature. z) It has low specific power.

Description : For which of the following reasons is plutonium-238 used for generating electricity on spacecraft? w) It is an alpha emitter with long half-life. x) It is a beta emitter with high specific power. y) It occurs abundantly in nature. z) It has low specific power.

Last Answer : ANSWER: W -- IT IS AN ALPHA EMITTER WITH LONG HALF-LIFE. 

The majority of the U.S. electricity generating plant use what thermodynamic cycle?

Description : The majority of the U.S. electricity generating plant use what thermodynamic cycle?

Last Answer : ANSWER: RANKINE

The most advantageous method of generating electricity from sea is the:

Description : The most advantageous method of generating electricity from sea is the: (A) Tidal power generation (B) Ocean thermal energy conversion (C) Ocean current power generation (D) Wave power generation

Last Answer : The most advantageous method of generating electricity from sea is the: Tidal power generation

The most common source of excitation for synchronous motors is a/an ______________. A. stepup transformer B. half-wave rectifier C. DC supply D. AC supply

Description : The most common source of excitation for synchronous motors is a/an ______________. A. stepup transformer B. half-wave rectifier C. DC supply D. AC supply

Last Answer : Answer: C

A transformer works with (1) alternating current only (2) direct current only (3) both AC and DC (4) any signal

Description : A transformer works with (1) alternating current only (2) direct current only (3) both AC and DC (4) any signal

Last Answer : alternating current only

Can transformer convert AC to DC?

Description : Can transformer convert AC to DC?

Last Answer : No, Transformer cannot convert AC to DC.

What do you think of Governor Andrew Cuomo stepping down?

Description : What do you think of Governor Andrew Cuomo stepping down?

Last Answer : Good. (I wonder if conservatives will call this “cancel culture”... nah)

Steve Jobs stepping down as CEO until June. Opinions?

Description : Steve Jobs stepping down as CEO until June. Opinions?

Last Answer : You have some kind of official source for this? I can’t find any confirmation of it, either on the official Apple site or on any of the Apple rumor sites.

The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these

Description : The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these

Last Answer : (3) Rectifier Explanation: A rectifier is an electrical device that converts alternating current (AC). which periodically reverses direction, to direct current (DC), which flows in only one ... serving as components of DC power supplies and high-voltage direct current power transmission systems.

When three-phase AC power is supplied to the device shown in the illustration, the output will be _____________. EL-0063 A. single-phase AC B. split-phase AC C. three-phase DC D. unidirectional DC

Description : When three-phase AC power is supplied to the device shown in the illustration, the output will be _____________. EL-0063 A. single-phase AC B. split-phase AC C. three-phase DC D. unidirectional DC

Last Answer : Answer: D

The purpose of the bias winding in figure 'B' shown in the illustration is for ____________. EL-0091 A. changing the direction of current in the control winding B. setting the operating point of the device C. allowing the use of either AC or DC in the load circuit D. changing the direction of current through the load

Description : The purpose of the bias winding in figure 'B' shown in the illustration is for ____________. EL-0091 A. changing the direction of current in the control winding B. setting the operating point of the ... use of either AC or DC in the load circuit D. changing the direction of current through the load

Last Answer : Answer: B

A silicon controlled rectifier (SCR) is a solid state device used to change ________________. A. DC to AC and control relatively low load current B. AC to DC and control relatively high load current C. DC to AC and control relatively high load current D. AC to DC and control relatively low load current

Description : A silicon controlled rectifier (SCR) is a solid state device used to change ________________. A. DC to AC and control relatively low load current B. AC to DC and control relatively high load ... to AC and control relatively high load current D. AC to DC and control relatively low load current

Last Answer : Answer: B

The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these

Description : The device which converts AC to DC is (1) Oscillator (2) Amplifier (3) Rectifier (4) None of these

Last Answer : Rectifier

Which of the following device converts DC to AC?

Description : Which of the following device converts DC to AC?  A) Rectifier B) Boost converter C) Transformer D) Inverter

Last Answer : Reflector

Which device use to convert DC to AC?

Description : Which device use to convert DC to AC?

Last Answer : Rectifier

The advantage of AC over DC is that (a) it contains more electrical energy (b) it is free from voltage fluctuations (c) it generation costs much less (d) it can be transmitted over long distances with minimum power loss

Description : The advantage of AC over DC is that (a) it contains more electrical energy (b) it is free from voltage fluctuations (c) it generation costs much less (d) it can be transmitted over long distances with minimum power loss

Last Answer : Ans:(d)

If the supply voltage is 220 volts 60 Hz, what is the operating voltage of the motor controller circuitry illustrated? EL-0011 A. 110 volts DC B. 110 volts AC C. 220 volts DC D. 220 volts AC

Description : If the supply voltage is 220 volts 60 Hz, what is the operating voltage of the motor controller circuitry illustrated? EL-0011 A. 110 volts DC B. 110 volts AC C. 220 volts DC D. 220 volts AC

Last Answer : Answer: D

A short in the shunt field of a DC motor is best located by _____________. A. visual inspection of the commutator B. applying AC voltage to each field coil and measuring the voltage drop across each field coil C. using a growler and hacksaw blade D. isolating each coil from the others and using a megohmmeter

Description : A short in the shunt field of a DC motor is best located by _____________. A. visual inspection of the commutator B. applying AC voltage to each field coil and measuring the voltage drop across ... using a growler and hacksaw blade D. isolating each coil from the others and using a megohmmeter

Last Answer : Answer: B

The voltage developed by an AC generator is controlled by varying the ____________. A. speed of the prime mover B. AC excitation to the field C. DC excitation to the field D. DC excitation of the voltage regulator

Description : The voltage developed by an AC generator is controlled by varying the ____________. A. speed of the prime mover B. AC excitation to the field C. DC excitation to the field D. DC excitation of the voltage regulator

Last Answer : Answer: C

The voltage output of an AC generator is accurately controlled by _____________. A. changing the sensitivity of the prime mover to large changes in voltage B. varying the reluctance of the air gap C. varying the DC exciter voltage D. shorting out part of the armature windings

Description : The voltage output of an AC generator is accurately controlled by _____________. A. changing the sensitivity of the prime mover to large changes in voltage B. varying the reluctance of the air gap C. varying the DC exciter voltage D. shorting out part of the armature windings

Last Answer : Answer: C

AC and DC generators are similar in that they _____________. A. both generate alternating voltages B. both rectify the voltage before delivery C. are constructed at the same physical size for the same kilowatt rating D. both supply three-phase power

Description : AC and DC generators are similar in that they _____________. A. both generate alternating voltages B. both rectify the voltage before delivery C. are constructed at the same physical size for the same kilowatt rating D. both supply three-phase power

Last Answer : Answer: A