0
Essentially yes, this is the reason why many electronic cables are surrounded by a metal mesh. This mesh acts as a Faraday cage and helps prevents the wires inside it from acting as an antenna and picking up unwanted noise.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How do different currents and voltages affect the body?
the body can act as a conductor
A material that allows electrons to flow freely is called a?
Metals are the most common type of conductors. In metals, the outermost electrons, known as "free electrons," are not tightly bound to the atomic nuclei and are capable of moving through the material when a voltage is applied. This is why metals are excellent conductors of electricity. Copper and aluminum are two of the most widely used conductors due to their high electrical conductivity and other desirable properties. Other materials, such as water with dissolved ions, certain types of graphite, and various alloys, can also act as conductors to varying degrees. Conductors play a vital role in electrical and electronic circuits, as they enable the flow of electric current, facilitating the transmission of power and signals.
What does an electric current act like when it flows through a wire?
it depends on the frequency of the current in question. the higher the frequency, the less depth in the cross-section the current flows. this is termed skin depth.
What is difference between ideal current source and practical current source?
Internal resistance. The ideal current source has no internal resistance in parallel with it (if it was set to supply no current it would act as an open circuit), and all the current it supplied would have to flow through its load (even if the load was an open circuit, in which case the voltage across the current source would be infinite). A real current source has the practical limitation that it must have an internal resistance in parallel with it, therefor some of the current it supplied is bypassed through that internal resistance and never reaches the load (if the load was an open circuit, then all the current supplied is bypassed and the resulting voltage drop across the internal resistance limits the voltage across the current source).
How transistor act as a switch?
A: When a transistor is saturated current can flow in both direction qualifying it as a switch
Suppose that you're facing a straight current-carrying conductor and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in?
A clockwise direction
Would a copper wire act as the best insulator of electric current?
no it is good conductor because it has free electrons
How do you explain to a kid what electricity has to do with magnetism?
You can explain the basic relationships:* An electrical current will be accompanied by a magnetic field. That is, it will act as a magnet. * If a conductor moves through a magnetic field (e.g., near a magnet), a current will flow through the conductor (if there is a closed circuit).
Why is gold a good conductor?
Gold, like any other metal, has a "sea" of delocalized/free electrons. These electrons act as "current carriers".
If your skin is moist or wet will it act as a good or poor conductor?
good conductor
How does an electric current make a magnet?
the electric current is generated by the electric field. thus by the left hand rule when current is passed through a conductor a magnetic field is generated around it so that it is a similar act of a magnet. thus it seems to be a magnet.
Who formulated a law for determining the direction of the induced current in a conductor?
There is no such thing as an 'induced current'. What is 'induced' is a voltage. If the conductor into which that voltage is induced forms a complete circuit, then a current will result. But it's the voltage that's induced, NOT the current! The direction of the induced voltage is explained by Lenz's Law which, in simple terms, tells us that the direction of the inducted voltage is always such that it will oppose the change in current that causes it. So the induced voltage will oppose any increase in current, but will act in the same direction as a reduction in current.
Does an ungrounded antenna near the ground act like a single antenna with twice the height?
A better simple approximation would be two antennas separated by twice the distance of the single antenna to the ground.
What is DC motor and working principal?
The principle (not 'principal') of operation of a d.c. motor is that whenever a current-carrying conductor is placed within a magnetic field, a force acts on that conductor which is perpendicular to that field -in other words, the force acts to push the conductor out of the field. If a pivoted loop of wire is placed within the same magnetic field, the forces on opposite sides of that loop act in opposite directions to each other, and a torque is applied to that loop. If the relative directions of current and field are maintained, then the loop will continue to rotate -this is done through the use of a split-ring commutator, a type of rotary switch, which also acts to supply the rotating loop from a fixed external circuit.
Is it possible to an antenna to act as transmitter and receiver at a time?
why not.. it is possible specially in satellites where such kind of antenna's are known as transceivers that is they can transmit and receive at the same time.
When a person touches alive wire electrical current flows through his body how does this happen if the circuit is not complete?
Current may go to the ground, or another conductor. Also, your body may act as a capacitor, in other words, absorbing some current even if the circuit is not complete. Note that the normal household current is AC.
What does elatio mean in English?
Exaltation; the act of lifting up; the act of carrying to burial.
