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5- What is the amount and direction of the current in the fourth wire? Also, explain...
1. If the current in the wire inside a lightbulb is 3A, what is the current in the connecting wire going into the lightbulb? O The connecting wire must have a current of more than 3A O The connecting wire must have a current of 3A O The connecting wire must have a current of less than 3A 2. Which of the following best describes the source of all magnetic fields? O Magnetic fields are due to magnetically charged particles...
An decreasing current I flows in an elliptical loop of wire. Two
loops of wire are placed as shown. Why is the flow of induced
current counterclockwise for loop 1? I thought that mutually
induced emf equals (-)M(di/dt). Doesn't the negative sign mean that
the mutually induced emf (and hence the induced current) will be in
the opposite direction of the rate of change of current? So why
wouldn't the induced current for loop 1 be clockwise?
ALSO: what is...
3. Explain how the right hand rule will predict the direction of the magnetic field for an electric current running through a coil of wire: 4. Explain how the right hand rule works for an external magnetic field that is changing inside a coil of wire: 5. In the situation below, the bar magnet is moving to the right. What will be the direction of the induced current in the solenoid? (Either draw arrows, or describe like up in front, down in...
long straight wire (extending indefinitely in the ty direction) is carrying current I-5 A in the ay direction and conducting coll having (a) At the instant that the wire is distance x with speed v 2 m/s in the «x-direction toward a small circular N 12 closely packed turns of radius r 2 cm. The ends of a voltmeter, and the coil lies in the xy plane, centered at th that the wire is distance x- 0.2 m from the...
An infinite straight wire carries current I1 = 3 A in
the positive y-direction as shown. At time t = 0, a conducting
wire, aligned with the y-direction is located a distance d = 50 cm
from the y-axis and moves with velocity v = 12 cm/s in the negaitve
x-direction as shown. The wire has length W = 24 cm.
)
What is ε(0), the emf induced in the moving wire at t = 0?
Define the emf to...
An infinite straight wire carries current I1 = 3 A in
the positive y-direction as shown. At time t = 0, a conducting
wire, aligned with the y-direction is located a distance d = 41 cm
from the y-axis and moves with velocity v = 18 cm/s in the negaitve
x-direction as shown. The wire has length W = 28 cm.
1)What is ε(0), the emf induced in the moving wire at t = 0?
Define the emf to be...
A loop of wire of radius R = 5 cm and current i= 15 A. What is B at the center? Magnitude and direction. Please include a detailed diagram
A long straight conductor has a constant current flowing to the right. A wire rectangle is situated above the wire, and also has a constant current flowing through it (as shown in the figure). It what direction is the net force on the wire rectangle? A) out of page B) up C) down D) force is zero E) left 8) A solid cylinder of radius R = 5.0 mm caries a uniform current density of 1.50 x 106 A/m2. What is the magnitude of the magnetic...
please answer each section!! extremely important
LABORATORY 9 MAGNETISM II: FORCE ON A CURRENT-CARRYING WIRE Objectives to be able to determine the magnitude and direction of the force on a current- carrying wire in a magnetic field to be able to apply Newton's Laws in magnetostatics to be able to experimentally determine the relationship between the force on a current-carrying wire in a magnetic field and the current through the wire to be able to experimentally determine the relationship between...
5. Using a surface integral calculation, find the current (in Amps) in a circular wire given a current density of)s 15(1-e-1000r)ez Amps/㎡ . That is, J has a magnitude of 15(1-e-1000r)as it is a function of distance r from the center to the outer surface. J points in the z direction. Draw the wire in a diagram with the cylindrical coordinate system and solve for I using a double integral. Hint- what is the surface area of the end of...