please answer [10] 6. Which of the following is (are) TRUE? Circle it (them). (a) A...
[10] 6. Which of the following is (are) TRUE? Circle it (them). (a) A diamagnetic material is attracted to the poles of a magnet. (b) A transformer is a device that can be used to increase or decrease the amplitude of an alternating voltage. (©) A paramagnetic material is repelled by the poles of a magnet. (d) A current carrying solenoid is a good example of a magnetic dipole. (e) Magnetic field lines form closed loops.
(e) 56.5 mn (a) 36.5 m2, Tl Cz (a). [10] 6. Which of the following is (are) TRUE? Circle it (them). (a) A diamagnetic material is attracted to the poles of a magnet. (b) A transformer is a device that can be used to increase or decrease the amplitude of an alternating voltage. (c) A paramagnetic material is repelled by the poles of a magnet. (d) A current carrying solenoid is a good example of a magnetic dipole. (e) Magnetic...
[8] 4. The amplitude of an alternating current is Imax = 19.2 x 10-Amperes. What is value of Irmi? Answer: (a) 18.0 A. (b) 25.0 A. () 32.1 A. (d) 47.5 A. (e) 60.5 A. [4) 5. In a series RLC circuit, the resistance is R = 34.5 m . At a certain frequency the circuit is in resonance and the value of the inductive reactance at that time is Xt, is 42.5 m2. At that time the capacitive reactance...
[10] 36. Which of the following is (are) FALSE? Give your answer in the form "x" or "x, y, ...". (a) A transformer is a device that can be used to increase or decrease the amplitude of an alternating voltage. (b) A paramagnetic material is repelled by the poles of a magnet. (c) In vacuum, all electromagnetic waves travel at the same speed. (d) A ferromagnetic materials that attracts other metals is called a permanent magnet (e) A diamagnetic material...
[10] 36. Which of the following is (are) FALSE? Give your answer in the form "X" or "x, y, (a) A transformer is a device that can be used to increase or decrease the amplitude of an alternating voltage. (b) A paramagnetic material is repelled by the poles of a magnet (c) In vacuum, all electromagnetic waves travel at the same speed. (d) A ferromagnetic materials that attracts other metals is called a permanent magnet (e) A diamagnetic material is...
Use the figure at the right for problems 1 and 2. [6] 1. A 9.61 m2 resistor, 6.55 Hinductor and switch are connected in series across an ideal EMF source -9.50 V. How much energy is stored in the magnetic field of the inductor when switch S is closed and the magnetic field becomes stable? Answer: (a) 9.05 m. (b) 12.5 mJ (c) 19.6 m). (d) 24.3 m). (e) 29.4 md. (1) [6] 2. In the previous problem, how long...
Use the figure at the right for problems 1 and 2. [6] 1. A 9.61 m2 resistor, 6.55 uH inductor and switch are connected in series across an ideal. EMF source E 9.50 V. How much energy is stored in the magnetic field of the inductor when switch S is closed and the magnetic field becomes stable? Answer: (a) 9.05 mJ. (b) 12.5 mJ (c) 19.6 mJ. R L ( (d) 24.3 mJ. (e) 29.4 mJ. [6] 2. In the...
[6] 2. In the previous problem, how long after switch is closed until the magnetic field is stable? Answer: (a) 1.38 ms. (6) 1.85 ms (c) 2.33 ms. (d) 2.79 ms. (e) 341 ms. (1) - [8] 3. An AC generator is connected to a circuit. The generator's emfis E(0) - 152 V sin(at). If the maximum current that results is 150 mA circuit, -5.01 x 10rad/s and the phase angle is -85.6 degrees, complete the following (0) = sin...
Use the figure at the right for problems 1 and 2. 2nswers. The [6] 1. A 5.61 m2 resistor, 1.55 pH inductor and switch are connected in series across an ideal EMF source E 9.50 V. How much energy is stored in the magnetic field of the inductor when switch S is closed and the magnetic field becomes stable? Answer: (a) 1.88 J. (b) 2.22 J (c) 2.77 J. (d) 3.20 J. (e) 3.79 J (0 [6] 2. In the...
Help pls answer all . The fact that an electric current generates a magnetic field has allowed people to 20. cons ruct which of the following devices? (Choose as many as apply.) (A) ammeters (B) voltmeters (C) motors (D) none of these When a magnet is plunged into a coil of wire, the magnitude of the current induced is affected by which of the following? (Choose as many as apply.) (A) the speed with which the magnet is plunged into...