Hello, I am just really confused about this problem it is a cylindrical conductor with an inner radius a and an outer radius b and carries a current of 3A uniform on the cross-section. I am supposed to find the magnitude of the magnetic field radius r from the axis.  a=0.2 cm b=3.8 cm r=3 cm

I R The radius of a long, solid, cylindrical conductor is R = 8.0 cm. A current I = 1.0 A is uniformly distributed through the conductor and is flowing out of the page. Calculate the magnitude of the magnetic field at r = 3.2 cm? OA) 2.5 x 10-10 T O B) 25 T ○ C) 10-6 T OD) 6.25 x 10-5 T ○ E) 0.25 T

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1) The total magnetic field to any current carrying conductor can be solved by a integration b laplacian c curl d differentiation 2) A charge is accelerated from rest through a potential difference. Which of the following is true? a The velocity of the charge is directly proportional to the magnitude of the potential difference b The acceleration of the charge is directly proportional to the square root of the magnitude of the potential difference. c The acceleration of the charge is directly proportional to the magnitude of the potential difference d The answer cannot be found on the other choices 3) Electric fields can be sources of magnetic fields. When does this happen?  a. When the electric field is static and the charge in the said electric field is moving with uniform velocity b. When the electric field is static c. The answer cannot be found on the other choices.  d. When the electric field is static and the charge in the said electric field is moving with constant…

Consider the current-carrying wire shown in the figure. The current creates a magnetic field at the point P, which is the center of the arc segment of the wire. If 0 = 25.0°, the radius of the arc is 0.800 m, and the current is 4.00 A, what are the magnitude (in nT) and direction of the field produced at P? magnitude direction Jo into the screen nT

A coaxial cable consists of a long thin wire surrounded by a cylindrical conductor of radius 5mm. A current of 30A flows to the right in the wire and an equal current flows to the left in the outer conductor. Find the magnetic field using Amperes Law at a point 3.5 mm from the central wire, and a point 3.5 cm from the central wire. Draw the magnetic field lines.

A particle of mass 7.7 x 10-8 kg and charge +10 µC is traveling due east. It enters perpendicularly a magnetic field whose magnitude is 4.3 T. After entering the field, the particle completes one-half of a circle and exits the field traveling due west. How much time does the particle spend in the magnetic field? Number i Units

A singly charged positive ion has a mass of 2.46 x 10-26 kg. After being accelerated through a potential difference of 242 V, the ion enters a magnetic field of 0.590 T, in a direction perpendicular to the field. Calculate the radius of the path of the ion in the field. cm

A wire carries current 0.500 A out of the page as shown. What is the magnetic field y direction at point P? P right down left up