At the instant when the current in an inductor is increasing at a rate of 0.063...
Question 1: The armature of a small generator consists of a flat, square coil with 180 turns and sides with a length of 1.70 cm. The coil rotates in a magnetic field of 7.55×10−2 T. What is the angular speed of the coil if the maximum emf produced is 2.10×10−2 V? Question2: At the instant when the current in an inductor is increasing at a rate of 6.40×10−2 A/s , the magnitude of the self-induced emf is 1.65×10−2 V ....
At the instant when the current in a coil is increasing at a rate of 0.25 A/s, the magnitude of the self-induced emf is 0.021 V. What is the inductance of the coil?
A certain inductor is formed from a circular coil consisting of 10 turns of wire. When a current of 2.5 A is sent through this coil, it experiences a total magnetic flux of 5 * 10^-7 Wb. a) What is the inductance of this coil? b) What magnetic energy does this inductor contain at this current? c) What is the magnitude of the self-induced EMF in the coil if current is reduced to 0 over 0.05 secs?
(1 point) A solenoid has 440 turns and its self-inductance is 1 mH. a) What is the flux through each turn when the current is 5 A? Wb b) What is the magnitude of the induced emf when the current changes at 35 A/s? mV
Exercise 30.12 - Enhanced - with Feedback Along, straight solenoid has 700 turns. When the current in the solenoid is 2.90 A, the average flux through each turn of the solenoid is 3.25 x 10-3 Wb. Part A What must be the magnitude of the rate of change of the current in order for the self-induced emf to equal 6.50 mV? Express your answer in milliamperes per second. ANSWER: die mA/s
A solenoid has a diameter d = 1.5 cm, length l = 30.0 cm, and 440 turns.(a) Find the inductance of the solenoid.Inductance = .143 mH(b) If the current through the solenoid increases at a rate 730 A/s, what is the magnitude of the induced emf?Induced emf = .105 V(c) What is the magnetic flux through each turn of the solenoid when the current through it is 5.9 A?Magnetic flux = _____T·m^2I just need part three. Thanks!3.26e-7 is not the...
a. A coil of wire with 209 circular turns of radius 3.10 cm is in a uniform magnetic field along the axis of the coil. The coil has R = 41.5 Ω . At what rate, in teslas per second, must the magnetic field be changing to induce a current of 0.149 A in the coil? b. A closely wound rectangular coil of 90.0 turns has dimensions of 30.0 cm by 47.0 cm . The plane of the coil is...
(1 point) A solenoid inductor has 100 turns. When the current is 5 A, the flux through each turn is 50 μwb. What is the induced emf when the current changes at 60 A/s? mV
A long, straight solenoid has 860 turns. When the current in the solenoid is 2.00 A , the average flux through each turn of the solenoid is 3.25×10−3Wb. Part A What must be the magnitude of the rate of change of the current in order for the self-induced emf to equal 6.00 mV ? Express your answer to three significant figures and include the appropriate units.
8. A coil has 1000 turns. When the current in the coil is 4.00 A, the average flux through each turn of the coil is 0.0250 Wb. What is the self-induced emf in the coil (in V) when the current in the coil is changing at a rate of 12.0 A/S? (A) 93.8 (B) 826 (C) 75.0 (D) 41.5 (E) 50.0 (F) 675