137 views
Is current from a battery AC or DC?

2 Answers

Answer :

Current from battery is DC. We can not store AC.
Like 0 like
It is DC because AC current flows with presence  of high voltage

Answer :

The current from the battery is DC


Like 0 like

Please log in or register to answer this question.

Related questions

210 views

Description : Do cell phones use AC or DC current?

Last Answer : DC of course.

2 answers
5.3k views

Description : Describe the difference between direct and alternating current.

Last Answer : Direct current is the flow of electricity or charge in one direction..  Alternative current is the flow of charge that doesn't flow in one direction. 

4 answers
108 views

Description : The current flow in a battery is due to ______ A) movement of ions B) movement of protons C) movement of holes D) movement of neutrons

Last Answer : The current flow in a battery is due to movement of ions

1 answer
104 views

Description : Can you make alternating current through a battery?

Last Answer : Yes, we can make AC through a battery using an inverter.

1 answer
83 views

Description : What is the advantage of AC over DC electrical transmission?

0 answers
164 views

Description : Why are DC motors used in trains and not AC motors ?

Last Answer : The reason is torque. torque is inversely proportional to speed..i.e when th knowe train comes to rest position to motion.. initial speed is zero..so it requires high starting torque for ... current will flow through field and armature coils then maximum torque is available at the intial condition.

1 answer
100 views

Description : Why is AC considered more efficient than DC?

Last Answer : Ac is more efficient than dc because it is easy to maintain and change the voltage of ac for transmission and distribution purpose. Plant cost of ac transmission is much lower compared to dc transmission. When fault occurs it is easy to interrupt ac supply.

1 answer
152 views

Description : Which is more dangerous AC or DC and why ?

Last Answer : Dc is more dangerous than Ac because in Ac the voltage  will varies but in dc the constant voltage 

2 answers
105 views

Description : What is the conversion between. AC to AC ? DC to DC? AC to DC? DC to AC ?

Last Answer : 1.ac to ac is regulation 2.dc to dc is chopper 3.ac to dc is rectifier 4.dc to ac is inverter

1 answer
5.2k views

Description : Is the power line voltage available in our homes a dc or an ac voltage?

Last Answer : The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.

1 answer
471 views

Description : Distinguish between AC and DC.

Last Answer : Particulars Direct Current Alternating Current Definition It is the current whose magnitude and direction do not change with respect to time. It is the current whose ... system, electroplating, Battery charging, Traction. AC machines, Domestic and industrial supply.

2 answers
145 views

Description : The main advantage of AC over DC is:  (A) Conversion flexibility from one voltage level to other (B) AC can be easily converted into DC by using a rectifier (C) AC is easy to maintain & can be easily distributed at long distances (D) All of the above

Last Answer : Ac is easy to maintain and ac can be easily converted to dc by rectifier .There is no commutator for conversion in ac that's why ac machines are weight less and more efficiency.ac machines occupy less space than dc .

2 answers
193 views

Description : Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

Last Answer : Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

1 answer
190 views

Last Answer : Igbt alone cant convert dc to ac. igbt half bridge or full bridge or three phase topology could be used to convert dc to ac. also igbt gates should be driven by microcontroller or pwm/spwm gate driving signals ... e4(-) and g4 c2e1 and c4e3 pins are AC output pins. its name is igbt inverter.

1 answer
82 views

Description : are AC and DC resistances same?

Last Answer : Resistance is the ability of a circuit or element (which is called resistor) to oppose current. Examples of Resistors with the ability of high resistance are Wood, Air, Mica, Glass, Rubber, Tungsten ... constant. Therefore, only the original resistance of wire comes into play. they are not the same

1 answer
185 views

Description : Alternating current (AC)

Last Answer : AC stands for Alternating Current meaning voltage or current that changes polarity or direction respectively over time. An Alternating Current (AC) is an electric current whose magnitude ... energy are known as alternators and are simpler construction than DC electromechanical generators.

2 answers
93 views

Description : How does AC current change direction?

Last Answer : This  is  because  the  angle  at  which  the   magnetic  fields  cuts  across  a  winding  changes  its  poles  thus  current  has  to  change  dirention  .

1 answer
2.6k views

Description : What is the direction of an AC current?

Last Answer : The magnitude and direction of alternating current is changes with respect to time. So for half cycle it is positive and for next half cycle it is negative.

2 answers
197 views

Description : Why do we use AC current in our homes?

Last Answer : We used it for cooking rice,  For washing clothes and for lights in the house.

3 answers
408 views

Description : State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.

Last Answer : Modifications are necessary in a dc series motor so that it operates satisfactorily on ac supply. The modifications are as follows:  1) AC series motor is built with a few field turns as ... and grinders 5) High speed vacuum cleaners 6) Sewing machines 7) Food processors 8) Drilling machine 

1 answer
265 views

Description : Compare the AC and DC Arc lamps.

Last Answer : AC Arc Lamp DC Arc Lamp Cross section area of electrode is same Cross section area of electrode is positive rod is twice that of negative rod Series inductor is used for stability ... supply is used for DC arc lamp Luminous efficiency is less Luminous efficiency is high

1 answer
470 views

Description : Do you think is DC better than AC to transmit energy?

Last Answer : In Long distance DC transmission will be better in cost. It requires more equipments for flexiblity In short distance AC transmission is better in  cost. It is more Flexible

2 answers
124 views

Description : How is a thyristor used to convert AC to DC?

Last Answer : thyristor

1 answer
319 views

Description : What is the difference between an AC and DC generator?

Last Answer : The generator which generates DC voltage is called DC generator and generator which generates AC voltage is called AC generator (or) Alternator. In DC generator armature is rotated and field winding ... generator. A DC generator can generate low voltages but an AC generator can generate upto 11kv.

1 answer
135 views

Description : Is electricity generated in AC or DC?

Last Answer : Electricity   is  generated  in  AC.

1 answer
156 views

Description : What is the difference between AC and DC drive?

Last Answer : AC means alternating current It's Frequency is 50hz Dc means direct current ItsI Frequency is 0Hz

1 answer
84 views

Description : What is the use of AC and DC drives?

0 answers
200 views

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

Last Answer : Obviously its A.C

4 answers
3.0k views

Description : Can transformer convert AC to DC?

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

9 answers
152 views

Last Answer : NO IT ONLY CONVERT FROM AC TO DC BECAUSE DIODE WHICH ARE USED IN IT, ARE UNIDIRECTIONAL.

2 answers
142 views

Last Answer : IT CHANGES NEGATIVE CYCLE IN TO POSITIVE CYCLE FROM AC CURRENT.

2 answers
102 views

Last Answer : Induction motor is a AC motor it is also known as asynchronous motor .

1 answer
226 views

Description : Direct Current (DC) Next Topic : Alternating current (AC)

Last Answer : Direct Current (DC) is the unidirectional electric current. Uni meaning is one. And the flow of charge in same direction. We know that conventional current flow from positive terminal of battery to ... The magnitude of DC may constant or vary but direction do not change with respect to time.

3 answers
357 views

Description : A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is

Last Answer : A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is 36 Ohm

1 answer
108 views

Description : The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density. When frequency is increased to 50 Hz., eddy current loss is :  (A) 256 W (B) 320 W (C) 500 W (D) 625 W

Last Answer : The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density. When frequency is increased to 50 Hz., eddy current loss is : 625 W

1 answer
537 views

Description : A 3 -phase, fully controlled, converter is feeding power into a DC load at a constant current of 150 A, the rms value of the current flowing through each thyristor of the converter is

Last Answer : Please show the solution for this question

2 answers
105 views

Description : when charging a battery we use a DC supply but not an AC supply. Why ?

Last Answer : When power is supplied to the battery, electrolyte inside the battery is divided into positive and negative ions, where ions with similar pole is gained in one side. This reactionʼs flow coincides with direct current.

1 answer
864 views

Description : The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees.

Last Answer : 45

2 answers
381 views

Last Answer : In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be more than full-load current.

1 answer
2.4k views

Description : Changeover from D.C to A.C  

Last Answer : In later half of eighties, in nineteenth century, it was proposed to have a power system with 3- phase, 50 Hz A.C generation, transmission and distribution networks. Once a.c system was adopted, transmission of ... favor of A.C supply system own the debate on switching over from D.C to A.C system. 

1 answer
124 views

Description : State any four advantages of A. C. over D. C . 

Last Answer : Advantages of AC over DC: i) It is possible to use a transformer. ii) Distribution efficiency is high. iii) Generation is easy and economical. iv) Construction of ac equipment/ machines is robust and simple ... . vii) AC system is economical than DC system. viii) AC system is safer than DC system.

1 answer
249 views

Description : All the rules and laws of D.C. circuit also apply to A.C. circuit containing?

Last Answer : All the rules and laws of D.C. circuit also apply to A.C. circuit containing resistance only.

1 answer
110 views

Last Answer : If a D.C. motor is connected across the A.C. supply it will burn due to heat produced in the field winding by eddy currents.

1 answer
138 views

Last Answer : A.C. series motor as compared to D.C. series motor has smaller brush width, less number of field turns, more number of armature turns, less air gap.

1 answer
92 views

Last Answer : If a D.C. series motor is operated on A.C. supply, it will spark excessively, have poor efficiency, have poor power factor.

1 answer
91 views

Description : A battery is known to have an EMF of 5.0V but when a certain voltmeter is connected to it the reading is 4.9V. The battery can deliver a current of 0.40A when connected to a resistance of 12ohms. What is the resistance of the voltmeter?

0 answers
94 views

Description : List out the precautions to be taken while charging of lead- acid battery 

Last Answer : precautions to be taken while charging of lead- acid battery: 1) Never keep the battery in the circuit and connect for external charging if it is not designed so. 2) While disconnecting / removing a ... tools etc on batteries. 10) Do not splash any liquids on the batteries, near the charger etc.

1 answer
...