a magnetic field has a magnitude at time t of 4.5x10^-5 T +(2.6x10^-6 T/sec)t. the field points in the positive z-direction.
a rectangular wire loop, which is 0.3 meters by 0.4 meters, lies in the xy-plane.
Note: If the z axis points out of the paper.
a.) What is the induced emf in the loop?
b.) If the wire loop has a resistance of 10 ohms, what is the current in the loop? In a clear diagram, indicate the direction in which that current travels.
c.) How could you re-orient the loop so that the induced emf was only 40% of the value of the value had to find in part (a)?
a magnetic field has a magnitude at time t of 4.5x10^-5 T +(2.6x10^-6 T/sec)t. the field...
A 3.0m wire travels through a uniform magnetic field of 0.3 T
with speed 0.5m/s. (The B field is going out of the paper and the
wire is moving o
a) What emf is induced in the wire?
b) if you assume that the ends of the wire are connected to an
external circuit with resistance 2.5 ohms, what is the magnitude
and direction of the current
c) What is the magnitude and direction of the force exerted by
the...
A flexible circular loop 0.10 m in diameter lies in a magnetic field of 1.80 T, directed into the plane of the diagram. The loop is pulled at the points indicated by the arrows, forming a loop of zero area in 0.20 s. Find the induced emf in the circuit. What is the direction of the current through R (up or down)? 16b. A rectangular conducting loop 0.25 m on a side lies in a magnetic field directed into the...
A circular loop in the plane of a paper lies in a 0.65 T magnetic field pointing into the paper. The loop's diameter changes from 19.0 cm to 6.6 cm in 0.51 sec. What is the magnitude of the average induced emf? What is the average induced current if the coil resistance is 3.1 Ω ?
A rectangular wire loop with sides of length w =1.6 m and h = 0.50 m and net resistance R lies in the xy-plane. It is placed in a region which is occupied by a spatially-uniform but time-varying magnetic field B = B_0[1 - [t^2/t_0^2]] k where B_) = 0.70 T and t_0 = 3.0 s. A graph of the B-field's t-dependence is given below. What is the direction of the current induced around the wire loop at time t...
A circular loop in the plane of a paper lies in a 0.65 T magnetic field pointing into the paper. The loop's diameter changes from 19.0 cm to 6.0 cm in 0.49 s . A.What is the direction of the induced current? B.What is the magnitude of the average induced emf? C.What is the average induced current if the coil resistance is 3.3 Ω ?
A circular loop in the plane of a paper lies in a 0.65 T magnetic field pointing into the paper. The loop's diameter changes from 23.0 cm to 5.2 cm in 0.50 s . Part a) What is the direction of the induced current? Part b)What is the magnitude of the average induced emf? Part c) What is the average induced current if the coil resistance is 3.7 Ω ?
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...
A uniform magnetic field is directed in the -z direction. A rectangular wire wound 8 times with a length of 0.7 meters and width of 0.7 meters is placed in the x-y plane in the field. The magnetic field is changed in magnitude from 15 Tesla to 4 Tesla in a time of 0.6 seconds.If the resistance of the wire is 8 Ohms, what is the magnitude and direction of its magnetic moment produced by the average induced current in...
A uniform magnetic field is directed in the -z direction. A rectangular wire wound 7 times with a length of 0.8 meters and width of 0.9 meters is placed in the x-y plane in the field. The magnetic field is changed in magnitude from 13 Tesla to 6 Tesla in a time of 0.5 seconds. If the resistance of the wire is 6 Ohms, what is the magnitude and direction of its magnetic moment produced by the average induced current...
A loop of wire with radius R lies in the xy-plane and carries a time varying current I(t) I, sin(ot). A smaller loop of wire with radius a lies in the xy-plane at the center of the larger loop. Assume that radius of the smaller loop is much smaller that the radius of the larger loop, a<<lR a) (10 points) At the center of the large loop calculate the magnitude and direction of the magnetic field B(t) due to the...