Aunit vector is used in the symbolic representation of the electric field. what physical units does the unit vector have? meters. the unit vector has no units. coulombs. the units depend on how it is used.

Explanation:

A unit vector is a vector whose magnitude is always unity that means 1 . It gives the direction of that quantity which is represented by this vector.

If the electric field is represented by a unit vector so it has same unit as electric field that means Newton per coulomb.

The unit of unit vector depend on the quantity for which it is used.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

the answer should be in the picture.