A long cable carries a current I = 5A, and dissipates 75 Watts. What are the voltage drop across its length?
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A long cable carries a current I = 5A, and dissipates 75 Watts. What are the...
Consider a long straight coaxial cable that carries a total current +I on its central conductor and - I on its concentric outer shell. Assuming that the current density on both conductors is uniform (though not necessarily the same value for both), find the magnitude of the magnetic field as a function of the radial distance s from the centre of the cable. Sketch a plot your result. For this particular problem, let the central conductor have a radius a...
A long horizontal wire carries a current I=5A out of the page, as shown in the image below. Calculate the magnitude and direction of the magnetic field at point A, 20 cm to the right of the wire. 20cm A long horizontal IÓ A
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An indefinitely long wire carries current (I). Across the entire length, there is a single loop of wire, as shown below, with radius R. a.) calculate the magnetic field at the center of the loop due to the current. b.) what direction does the field point?
A typical lightbulb in your residence is rated 75 W, which means that the bulb dissipates 75 W when connected to a DC voltage of 110 V. (a) What is the current? A (b) If the voltage is reduced to 74 V, what is the dissipated power? Assume the resistance does not change when the voltage is reduced. W
with an ammeter, measure the current flowing through a cable and read -5A. What does the negative sign mean? How much charge flows through a cross section of the cable in 3 seconds?
1) A 45 m cable is stretched horizontally between two vertical posts.The cable carries a current of 75 A and experience a magnetic force of 0.15 N.Find the magnitude of the magnetic field assuming that it makes an angle of 60 degrees with respect to the cable.
A 160-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,150 A. If the conductor is copper with a free charge density of 8.5 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable? (Use 3.156 107 for the number of seconds in a year.) yr?
3. A very long wire is along the z -‐ axis and carries current I in the positive z direction. A wire segment of length L is parallel to the long wire and is initially a distance x 0 away from it along the positive x -‐ axis. The midpoint of the wire segment is on the x -‐ axis. At time t = 0, t he wire segment begins moving away from the long wire with constant velocity €...
A long, straight wire of length 1.2 m carries current I = 1.6 A. If a magnetic field of magnitude B = 1.1 T is directed perpendicular to the wire, what is the magnitude of the force on the wire? N