Thank you...
need help finding the length 15. (10 pts.) A solenoid of cross sectional area 1.4 m² and n=300 turns/m carries a cur...
A solenoid is 1.5 m long and has 470 turns per meter. What is the cross sectional area of this solenoid if it stores .31 J of energy when it carries a current of 12 A?
A long solenoid (cross-sectional area = 1.10*10^-6 m^2, number of turns per unit length = 2544 turns/m) is bent into a circular shape so it looks like a donut. This wire-wound donut is called a toroid. Assume that the diameter of the solenoid is small compared to the radius of the toroid, which is 0.052 m. Find the emf induced in the toroid when the current decreases to 1.3 A from 2.7 A in a time of 0.14 s. The...
A long solenoid (cross-sectional area = 0.79 x 10-6 m2, number of turns per unit length = 3523 turns/m) is bent into a circular shape so it looks like a doughnut. This wire-wound doughnut is called a toroid. Assume that the diameter of the solenoid is small compared to the radius of the toroid, which is 0.041 m. Find the emf induced in the toroid when the current decreases from 2.5 A to 1.1 A in a time of 0.15...
A solenoid a cross-sectional area of 5.4x10^-4 m^2, consists of 540 turns per meter, and carries a current of 0.46 A/ A 18-turn coil is wrapped tightly around the circumference of the solenoid. The ends of the coil are connected to a 1.3 (unit) resistor. Suddenly, a switch is opened, and the current in the solenoid dies to zero in time of 0.047 S. Find the average current induced in the coil.
How many turns should a solenoid of cross-sectional area 4.1×10−2 m2 and length 0.34 m have if its inductance is to be 65 mH ? Express your answer using two significant figures.
3. (20 points) A solenoid has a length of 0.1 m and cross sectional area 104 m2 The total number of turns of wire isN-1000. The current in the wire is 1-0.01 sin (100 π t). μο 4TY 107 in our SI units, a) Find the magnetic field B(t) inside the solenoid. b) Find the magnetic flux Ф, (t) inside the solenoid. c) Express the induced voltage on one turn of the wire,in terms of dI/dt. What is the inductance...
How many turns should a solenoid of cross-sectional area 3.5times10^-2 m^2 and length 0.25 m have if its inductance is to be 40 mH ? Express your answer using two significant figures.
A solenoid of length 8.0 x 10^-2 and cross sectional area 5.0 x 10^-2 m^2 contains 6500 turns per meter of length. Determine the emf inducted in the solenoid when the current in the solenoid changes from 0 to 1.5 A during a time interval of 0.20 seconds.
7. a) Find the rate of energy flow through a copper block of cross-sectional area 15 cm and length 8.0 cm when a temperature difference of 30°C is established across the block. Repeat the calculation, assuming that the material is (b) a block of wood with the given dimensions. kcopper - 397 J/s.m. C, ker = 0.1397 Jls.m. C 8. Describe the change in the magnetic field in the space enclosed by a solenoid carrying a steady current lif (a)...
A circular coil of wire 50 turns and a cross sectional area of 10.0 cm^2 carries a current of 4.0 A.It is placed in a magnetic field of 2.0 T with the coil making an angle of 60 degrees with the magnetic field. What is the torque exerted on the coil by the field? A) 0.70 N*m B) 0.20 N*m C) 0.80 N*m D) 0.40 N*m E) 0.35 N*m (I got 0.80 N*m,but I feel like I did something wrong...