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Why plus and minus are indicated in dc circuits?
It means that the current flows in a specific direction.
What is the relationship between the present value factor and annuity present value factor?
Present value annuity factor calculates the current value of future cash flows. The present value factor is used to describe only the current cash flows.
Which of the following statement about electromagnets is true?
Electromagnets are temporary magnets that are created when electric current flows through a wire coil. The strength of an electromagnet can be increased by increasing the number of turns in the wire coil, increasing the current flowing through the coil, or by using a ferromagnetic core material.
What does the term frequency mean in electricity?
That refers to AC (alternating current). A direct current flows only in one direction; an alternating current changes its direction all the time. The "frequency" refers to how often the current changes direction. It is expressed in hertz (Hz), which means the same as cycles/second.
What is the rate of the current if Jim's motorboat travels downstream at the rate of 15km per hour and going upstream it travels at 7km per hour?
The current flows at 4 kph.The boat motors at 11 kph.
How much current flows through a resistor with zero potential difference?
No current flows when the the voltage is zero.
What is the difference between series and parallel connection in current flow?
In a series connection, the current flows through each component in a single path, while in a parallel connection, the current splits and flows through multiple paths.
Why does the current flow through wire?
Current flows through a wire when there is a difference in electric potential between two points. This potential difference creates an electric field that drives the flow of electric charge (current) through the wire.
What is the difference altarnet current and direct current?
Direct current= flows in one direction ... AC flows in back and forward ..
What is the difference in AC welding machine and DC welding machine?
Alternating current flows from the welder through the torch into your welder, through the grounding cable, and back into your machine. It then flows in the exact opposite direction. The result is deep penetration, and removal of impurities in the weld. It is used mainly on aluminum and alloys. Direct current has both a positive and negative setting: the difference is the direction of the current. One flows from the welder, through the torch, through the material and back into the ground; the other flows in the opposite direction.
What flows through a complete circuit?
Current flows through a complete circuit.
When a electric current flows through a wire it creates a?
When an electrical current flows through a wire it creates what is called an Electro Magnetic Field.A magnetic field is create when an electric current flows through a wire.
The total current that flows through a circuit is the same as the current that flows through each individual resistor connected in series?
True
How does a current flow through a wire?
according to kcl the current flows through a wire
Why you get electric shock when current flows opposite direction in a conductor?
When current flows in opposite directions in a conductor, a potential difference is created between the entry and exit points of the body. This potential difference causes an electric shock when the body comes into contact with a conductive material, leading to current passing through the body and potentially causing harm.
True or false The total current that flows through a circuit is the same as the current that flows through each individual parallel sub-circuit?
True
How does the potential difference in the resistor change as the current through it changes?
The potential difference accross the resistor changes mainly due to gradual increase accumulation of electrons in the lower potential region which will in turn affect the potential gradient as the current flows through the resistor
