For a conductor with finite conductivity, an electric field is needed in order to drive a current in the wire. Note here that if you bend the wire or put it at an angle relative to the field, surface charges will form because you now have a field component normal to the surface.Considering this, when a wire carries a current then electric field?
Answer: Electric field inside a current carrying conductor is zero as the charges inside it distributes themselves on the surface of the conductor. The net charge in the current carrying wire is zero. Thus the assertion is true while the reason is wrong.
Subsequently, question is, why is there an electric field in a current carrying conductor? A conductor contains "free" electrons while insulators do not. Suggest why there must be an electric field inside a current-carrying conductor. To have a current, electrons must be accelerated along the wire and so an electric force must act on them. This is provided by the electric field.
Beside this, why there is no electric field around a current carrying conductor?
if u put a positive charge in any medium then there would be electric filed lines in that medium starting from +ve charge to -ve charge. so current carrying wire doesn't produce electric field because wire is basically neutral (balanced)…the charges which are responsible for current is flowing.
Is there an electric field in a wire?
Although a wire is a conductor, there is no electric field in it just because it is capable of conducting current! If you connect a battery to the ends of the wire, the battery voltage creates an electric field that, in deed, causes the electrons in the wire to move and try to "neutralize" the electric field.
Is any work done by magnetic field on a moving charge?
The magnetic field does no work, so the kinetic energy and speed of a charged particle in a magnetic field remain constant. The magnetic force, acting perpendicular to the velocity of the particle, will cause circular motion.Does current create electric field?
Yes, an electric current =does= produce an electric field. This is due to relativity, specifically the Lorentz Contraction. But then we'd have to differentiate between a static electromagnetic force (electric field) and a moving electromagnetic force (magnetic field).Is a current carrying wire charged?
Answer and Explanation: When an electric current flows in a wire, it flows as a drift of free electrons in the metal. Therefore, for a current-carrying wire, the total charge on the wire will be zero and hence a current-carrying wire electrically neutral.Is a wire carrying current Charged give reason?
Answers : (1) a current carrying wire has free electrons which are moving and hence, cause the current to flow. But, there are equal positive ions present in the wire which form the resistance and hence a wire carrying current is electrically neutral.When a current flows in a circuit is there an electric field inside the conductor?
In the static situation, when there is no current inside or on the surface of the conductor, the electric field is zero everywhere inside the conductor. This fact can be taken as the defining property of a conductor. A conductor has free electrons.When there is an electric current through a conducting wire along its length?
When there is an electric current through a conducting wire along its length, then an electric field must exist.Does DC current produce magnetic field?
Learn more physics! A DC current in one coil will make a magnetic field on the other coil, but a magnetic field by itself won't drive any electrons around. A CHANGING magnetic field, however, does create an electric force which will accelerate those electrons in the other coil into carrying a current.How do you find the magnetic field?
A current-carrying wire feels a force in the presence of an external magnetic field. It is found to be F=Bilsinθ F = Bi l sin θ , where ℓ is the length of the wire, i is the current, and θ is the angle between the current direction and the magnetic field.What would have happened if magnetic field is not created around current carrying conductor?
Explanation: But when a conductor is placed in a magnetic field there will be no change in the magnetic field lines. For example if there are two parallel wires carrying an electric current in the same direction they will experience a force due to the magnetic filed generated.What is the force on a current carrying wire in a magnetic field?
The force on a current-carrying wire in a magnetic field is F = IlB sin θ. Its direction is given by RHR-1.What is the net charge of a conductor carrying a current?
The net charge in a current carrying conductor is zero; even it experiences a force in a magnetic field.Can electric field pass through a conductor?
As they've explained, electric field lines cannot pass through the conductor for then E will either form a closed loop (cannot happen cause curl E=0) or it will pass from the inner surface to the outer and there will be potential difference which is a contradiction (Conductors have equipotential surfaces).Is there a magnetic field inside a wire?
The Field Inside a Current-Carrying Wire The magnetic field should still go in circular loops, just as it does outside the wire. So, inside the wire the magnetic field is proportional to r, while outside it's proportional to 1/r.What is the unit of electric field?
The SI units of the electric field are newtons per coulomb (N/C), or volts per meter (V/m).What is lambda in physics electric field?
Linear charge density (λ) is the quantity of charge per unit length, measured in coulombs per meter (C⋅m−1), at any point on a line charge distribution. Charge density can be either positive or negative, since electric charge can be either positive or negative.Which field lasts only as long as the current is flowing through the wire?
magnetic field
What is the magnitude of the electric field?
the magnitude of the electric field (E) produced by a point charge with a charge of magnitude Q, at a point a distance r away from the point charge, is given by the equation E = kQ/r2, where k is a constant with a value of 8.99 x 109 N m2/C2. 
