A solenoid that is 70 cm long produces a magnetic field of 1.8 T within its core when it carries a current of 8.1 A. How many turns of wire are contained in this solenoid? Express answer using two significant figures.

The graph shows the relationship between the magnetic field (B in mT) at the center of a solenoid and the current I (in A). If the solenoid is composed of 33 turns, what is its length in cm? Given that μ = 1.26x10-6 T.m/A B(mT) Round your answer to 1 decimal place. Your Answer: 0.045195 Incorrect The answer is 46.2 ± 5%. Y= 0.092 X + 0.2 I(A)

You have designed and constructed a solenoid to produce a magnetic field equal in magnitude to that of the Earth (5.0 x 10-5 T). If your solenoid has 400 turns and is 28 cm long, determine the current you must use in order to obtain a magnetic field of the desired magnitude. mA

A solenoid 3.0 cm long consists of 9000 loops of wire. If the magnetic field inside the solenoid is measured as 1.0 T, what is the magnitude of the current that flows through it? a 0.037 A b 0.37 A c 2.65 A d 3.05 A e 0.58 A

The superconducting magnet of an MRI scanner requires 810 A of current to create a magnetic field of 4.5 T in the center of its solenoid coil with a 0.65 m radius.    If the solenoid is 1.9 m long, how many loops of wire does it have?  N =

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A solenoid has 7,635 turns, a length of 74.1 mm, and a radius of 2.77 mm. What is the strength of the magnetic field at the center of the solenoid if it carries a current of 865 amps?

An air-core solenoid with 64 turns is 8.00 cm long and has a diameter of 1.20 cm. When the solenoid carries a current of 0.710 A, how much energy is stored in its magnetic field?

what is the answer??! help!

A 13.5 cm long solenoid contains 789 turns and carries a current of 4.75 A. What is the strength ? of the magnetic field at the center of this solenoid?