(a) A square loop of wire with sides of length 40cm is in a uniform magnetic field perpendicular to its area. if the field's strength is initially 100mT and it decays to zero in 0.010 s, what is the magnitude of the average emf induced into the loop? (b) What is the average emf if the sides of the loop were only 20cm?
(a) A square loop of wire with sides of length 40cm is in a uniform magnetic...
A square wire loop with 2.0 m
sides is perpendicular to a uniform magnetic field, with half the
area of the loop in the field as shown in Figure 30-41. The loop
contains an ideal battery with emf = 16 V. If the magnitude of the
field varies with time according to B = 0.050 - 0.88 t, with B in
teslas and t in seconds, what are
(a) the magnitude and
(b) the direction of the net emf in...
A square wire loop with 2.00m sides is perpendicular
to a uniform magnetic field as shown in the figure. The loop
contains an ideal battery with emf=20.0V. If the magnitude of the
field varies with time according to B=0.0420-0.870t , with B in
teslas and t in seconds, what are the:
A. Net emf in the circuit (show your work and explain
your answer)
B. And the direction of the (net) current around the
loop? (shoe your work and explain...
1. A square loop whose sides are 6.0-cm long is made with copper wire of radius 1.0 mm. If a magnetic field perpendicular to the loop is changing at a rate of 5.0 mT/s, what is the current in the loop? 2. A long solenoid with n = 10 turns per centimeter has a cross-sectional area of 5.0 cm2 and carries a current of 0.25 A. A coil with five turns encircles the solenoid. When the current through the solenoid...
Fig. 3 Problem 5 A square wire loop with sides of length L=2.00 m is perpendicular to a uniform magnetic field pointing out of the page, with half the area of the loop in the field as shown in Fig. 3. The loop contains an ideal battery with emf Ebar=20.0 V. The magnitude of the field varies with time according to the expression B = 0.0420-0.870t, with B in Tesla and t in seconds. (a) Use Faraday's law to determine...
A square wire loop with 1.7 m sides is perpendicular to a uniform magnetic field, with half the area of the loop in the field as shown in the figure. The loop contains an ideal battery with emf Script uppercase E. = 19 V. If the magnitude of the field varies with time according to B = 0.040 - 0.85 t, with B in teslas and t in seconds, what are (a) the net emf in the circuit and (b)...
A square wire loop with 3.00m sides is perpendicular to a uniform magnitude field, with half the area of the loop in the field, as shown below. The loop contains a 20.0 volt battery with a 210.0 ohm resistance in the circuit. If the magnitude of the field varies with time according to B(t0 = (9.00T/s)t - (3.60 T/s^2)*t^2. What is the induced emf in the circuit at 2.00 seconds? What is the total emf in the circuit at 2.00...
1. (40 POINTS) A square wire loop with 1 m sides is perpendicular to a uniform magnetic field, with top half of the area of the loop in the field out of the page and the bottom half of the loop is in the magnetic field into the page, as shown in the figure. The loop contains an ideal battery with emf 8 = 25 V. If the magnitude of the field on the top varies with time according to...
A horizontal square wire loop of side d lies in a plane perpendicular to a uniform magnetic field B pointing from above into the plane of the loop. The magnitude of magnetic eld ~ B is: B = 0.80 T. If in ∆t = 4.0 ms the wire is reshaped from a square to a rectangle of dimensions: L = 10.0 cm; W = 6.0 cm, but remains in the same plane. a - What is the side d of...
A square wire loop 30 cm on a side, with resistance 39 mΩ, has its plane normal to a uniform magnetic field of magnitude B = 5.0 T. If you pull two opposite sides of the loop away from each other, the other two sides automatically draw toward each other, reducing the area enclosed by the loop. If the area is reduced to zero in time Δt = 0.44 s, what are (a) the average emf and (b) the average...
A square loop with sides of length L lies in the x-y plane in a
region in which the magnetic field points in the z-direction and
change over time as B(t)=B0e^(-5t/t0)k. Find the magnitude of the
EMF induced in the wire, show the direction of the induced current
in the loop using Lenz's law.
A square loop with sides of length L lies in the r-y plane in a region in which the magnetic field points in the z-direction and...