Plz guys help me with this question. it is test

False

Explanation:

The time rate of flow of electric current is not the charge. Electric current is the time rate of flow of electric charge.

 Its unit is in Amperes;

          Electric current  =

Therefore, it wrong to say charge is the quantity of electric current that flows per unit of time.

Charge is the amount of electrons within an atom

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:

vapour or gas assuming atmospheriv pressure