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Because a battery cannot invert its polarity - batteries will always have one positive and one negative lead and it cannot be changed.
Alternating current is just what it says; at the top of the first cycle Lead 1 is positive and Lead 2 is negative, at the bottom of the cycle Lead 1 is negative and Lead 2 is Positive (explained as mid cycle to avoid confusion; in reality each 'cycle' starts with the transition where both leads transverse the zero volts threshold).
What else can I help you with?
What is current flowing in One Direction?
Direct current (DC) is the type of current that flows in one direction continuously. This is in contrast to alternating current (AC), which changes direction periodically. Examples of devices that operate using DC include batteries and solar cells.
Why don't we get most of our electricity from batteries?
Batteries store electricity but they do not generate it. Most of our electricity comes from power plants that convert various energy sources (such as coal, natural gas, nuclear, or renewable sources like solar and wind) into electrical energy. Batteries are typically used for storing and supplying smaller amounts of electricity or for backup power in case of outages.
Why direct current is called direct current?
Because of the chemicals and metals which are used to make it, a battery can only produce dc (direct current).For the same reason a battery cannot produce ac (alternating current) on its own, but it can be connected to another device, which is called an invertor, to produce ac for use by devices which require ac instead of dc.Many of the devices and other pieces of equipment to which a battery can be connected will only work on direct current (such as, for example, car starter motors) but some things (such as light bulbs) can work on either dc or ac.Some batteries are rechargeable but they cannot be recharged using ac . That is why all battery chargers which are designed to plug into house ac power sockets must convert the ac to dc.For more information please see the answers to the Related Questions shown below.
What is a current consisting of charges that flow only in one direction called?
A current consisting of charges that flow only in one direction is called direct current (DC). In DC, electrons flow continuously in one direction from the negative to the positive terminal of a power source.
Can only direct current be used for charging batterys?
No, alternating current (AC) can also be used to charge batteries using a charger that converts AC to DC. The charger will convert the AC power from the outlet to DC power that is suitable for charging the battery.
How are batteries a source of direct current?
Batteries are a source of direct current because they product power (voltage and current) in only one direction.
Do batteries have the ability to generate a flow of electrons?
yes Batteries only produce direct currents
Is it possible to get a battery to produce ac current?
No. Batteries can only produce dc current which can further be converted to AC using inverters.
What is a currnet?
Direct current is a flow of electricity which only goes one way. Batteries, for example, produce direct current, so the current must flow all the way through a circuit and back into the battery to work. Alternating current is what comes out of a wall outlet, and it alternates in both directions, with current flowing in and out of the outlet.
Did mains electricity exist in 1879?
No, there was only Direct Current from batteries but no AC electricity as we know it today.
What is a direct currnet?
Direct current is a flow of electricity which only goes one way. Batteries, for example, produce direct current, so the current must flow all the way through a circuit and back into the battery to work. Alternating current is what comes out of a wall outlet, and it alternates in both directions, with current flowing in and out of the outlet.
Why does a battery have a positive and negative ends?
Because batteries only offer DC (direct current) which only flows one way
Do wet cells and a generator both produce direct current?
No wet cells only store current.
How batteries produce electricity?
Batteries do not produce electricity, they only store electricity.
What type of current is produced by a battery?
Automotive lead acid batteries of 12 volts have six cells internally wired in series, each cell generating 2V. The positive plate is made of lead grid with a lead oxide paste coating and the negative plate is porous lead. Dilute sulphuric acid is the electrolyte. The lead acid battery produced a direct current or DC during a chemical reaction that turns lead dioxide to lead sulphate and sulphuric acid to water. During recharging the process is reversed.
Which current flows in one direction only?
Direct current (DC) this is produced by for example batteries. AC alternating current changes direction on a cyclical basis and is used in power distribution and what "comes out" of the power sockets in the home.
What is current flowing in One Direction?
Direct current (DC) is the type of current that flows in one direction continuously. This is in contrast to alternating current (AC), which changes direction periodically. Examples of devices that operate using DC include batteries and solar cells.
