If L=0.10m, v=2.4m/s, the total resistance of the loop is 0.040Ω, and B=0.75T, find the rate...
If L=0.10m, v=2.4m/s, the total resistance of the loop is 0.040Ω, and B=0.75T, find the rate at which the induced emf delivers electrical energy to the circuit.
Homework Answers
energy delivered rate = power = i2R
where i = BLv/ R
= 0.75 . 0.1 . 2.4/ 0.04
= 4.5 Ampere
SO ENERGY RATE = 0.81 W
L= inductace
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If L=0.10m, v=2.4m/s, the total resistance of
the loop is 0.040Ω, and B=0.75T, find the rate...
3. Electromagnetic Inductance. Consider a single loop under magnetic field. (a) If the area A =...
3. Electromagnetic Inductance. Consider a single loop under magnetic field. (a) If the area A = 0.012[m) is constant, but the magnetic field is increasing at the rate of 0.020 T/s), determine the induced emf. (Use Faraday's law; the induced emf in a loop equals the absolute value of the time rate of change of the magnetic flux through the loop.) (b) If the total resistance of the circuit is 5.0(82), find the induced current. (c) Suppose we change the...
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#3 only. Thanks!
In the generator rod take B = 2.5 T, v = 4 m/s, l =30 cm, and current 2.0 A, clockwise. Find (a) increase in magnetic flux in one second, (b) the emf, (c) the magnetic back-force on the rod-the external force needed to keep it moving. (d) Calculate the rate (i) at which electrical energy is produced by the emf, and (ii) at which the external force does work, showing equality. (e) Find the resistance of...
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3. Electromagnetic Inductance. Consider a single loop under magnetic field. (a) If the area A = 0.012[m) is constant, but the magnetic field is increasing at the rate of 0.020 T/s), determine the induced emf. (Use Faraday's law; the induced emf in a loop equals the absolute value of the time rate of change of the magnetic flux through the loop.) (b) If the total resistance of the circuit is 5.0(82), find the induced current. (c) Suppose we change the...
#3 only. Thanks!
In the generator rod take B = 2.5 T, v = 4 m/s, l =30 cm, and current 2.0 A, clockwise. Find (a) increase in magnetic flux in one second, (b) the emf, (c) the magnetic back-force on the rod-the external force needed to keep it moving. (d) Calculate the rate (i) at which electrical energy is produced by the emf, and (ii) at which the external force does work, showing equality. (e) Find the resistance of...
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A conducting square loop is in a uniform magnetic field B as shown. The side length of the loop is L = 60 cm, and the loop has an effective resistance of R = 0.045 Ohm. The magnitude of B decreases steadily from an initial value B_0 = 0.050 T to zero in 0.20 seconds, and stays at zero afterwards. Find the magnitude of the induced emf in the loop. What is the current in the loop? And in what...
A conducting rod is pulled horizontally with constant force F=
4.80 N along a set of rails separated by d= 0.620 m. A uniform
magnetic field B= 0.500 T is directed into the page. There is no
friction between the rod and the rails, and the rod moves with
constant velocity v= 6.60 m/s.
A.) Using Faraday's Law, calculate the induced emf around the
loop in the figure that is caused by the changing flux. Assign
clockwise to be the...
A square loop of wire of side 2.6 cm and electrical resistance 79 ohm is near a long straight wire that carries a current of 7.0 A in the direction indicated. The long wire and loop both lie in the plane of the screen. The left side of the loop is 9.0 cm from the wire. Part 1 out of 3 (a) If the loop is at rest, what is the induced emf in the loop? What are the magnitude...
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