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Q: What is the current of 120v dc source?
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Why a transformer designed for a 120V AC input will often burn out if connected to a 120V DC source?

All transformers are designed to work on AC. They do not work on DC.If you connect an inductor to DC, the current will increase until the capacity of the source or the conductance (1/resistance) capacity of the inductor and conductors is reached. Often, this condition will overheat and destroy the inductor, or destroy the source. A transformer is not an exception, as it is a form of inductor.


Wt is source current and sink current in a DC regulator?

The source current is that current which will leave the DC regulator and travel to the load circuit connected to it. The sink current is that current which may come from the load circuit and attempt to find a path through the ground through the regulator. Generally most regulators are designed to just source current to a load and are not setup to receive current back(sink it)


Can you connect an AC source in series to DC source - then what happens to the current under a steady state condition?

With an AC and a DC voltage source in series, the DC voltage can be added to the RMS value of the AC voltage to give the effective voltage.


How can you differentiate DC and ac?

DC is direct current. It is characterized as a voltage or current that is constant or, more precisely, always in one direction. A battery is an example of a DC source. AC is alternating current. It is characterized as a voltage or current that is alternating, i.e. changing direction at some frequency such as 50Hz or 60Hz. The power supplied to your home from the public power utility is an example of an AC source. ac is attractive in nature while dc is repulsive .


What are the differences between ac servomotor and dc servomotors?

AC servomotors require an alternating current as a power source, meaning they need to be plugged into an outlet, while DC servomotors require a direct current as a power source, meaning they can be run off of battery power.

Related questions

Why a transformer designed for a 120V AC input will often burn out if connected to a 120V DC source?

All transformers are designed to work on AC. They do not work on DC.If you connect an inductor to DC, the current will increase until the capacity of the source or the conductance (1/resistance) capacity of the inductor and conductors is reached. Often, this condition will overheat and destroy the inductor, or destroy the source. A transformer is not an exception, as it is a form of inductor.


How does an ac power source differ from a dc power source?

AC power sources are the adapter power sources. DC power sources are the direct power sources. DC stands for direct current, meaning it is a direct source of energy., and AC stands for alternating current, which means it is a secondary source of power.


What is an energy source for a DC current?

An energy source commonly used for DC current is a battery. A battery generates direct current through a chemical reaction, providing a steady flow of electrons in one direction. Other sources such as solar panels can also produce DC current by converting sunlight into electrical energy.


Why DC supply is used in control circuit?

dc supply is used for control circuit because dc current is an independent source .


What is DC current?

Direct Current (DC) is an electric current flowing in one direction only.For the source and more detailed information concerning this subject, click on the related links section indicated below.


Wt is source current and sink current in a DC regulator?

The source current is that current which will leave the DC regulator and travel to the load circuit connected to it. The sink current is that current which may come from the load circuit and attempt to find a path through the ground through the regulator. Generally most regulators are designed to just source current to a load and are not setup to receive current back(sink it)


What is D-C electricity?

DC electricity is direct current, compared to AC which is alternating current where the current is consistantly changing direction, direct current does not change direction. The main source of DC is a battery.


A power source can deliver what two types of current?

Power supplies can supply AC or DC current.


How do you identify dc source is connected instead of battery?

"dc" is direct current which is what batteries use, whereas "ac" is alternating current, which is what your household receptacle uses.


A dc voltage source of 10V is in parallel with a current source of 5A and a resistance of 1 ohm what will be the current across the resistance?

use kvl or kcl


Can you connect an AC source in series to DC source - then what happens to the current under a steady state condition?

With an AC and a DC voltage source in series, the DC voltage can be added to the RMS value of the AC voltage to give the effective voltage.


Is DC is at low voltage than ac?

There's no correlation between the voltage, the current, and whether the source is AC or DC.