Homework Answers
A.
I = EMF/R
EMF = vLB
I = vLB/R
I = 2.6*0.11*0.7/5 = 0.04004 Amp. = 40.004 mA
B.
F = i*L*B
F = 0.04004*0.11*0.7
F = 0.00308308 N = 3.08308 mN
C.
P = i^2*R
P = 0.04004^2*5 = 8.016 mW
D.
Rate of mechanical energy = F*v
= 3.08308*10^-3*2.6 = 8.016 mW
Problem 27.49 Constan In the figure. I =16 cm, B-0.600 T. R-4.5.and U 2.6 m/s. (Figure...
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The 10-cm-wide, zero-resistance slide wire shown in the figure is pushed toward the 2.0 ohm resistor at a steady speed of 0.50 m/s. The magnetic field strength is 0.55 T. (Figure 1) How big is the pushing force? Express your answer with the appropriate units. How much power does the pushing force supply to the wire? Express your answer with the appropriate units.
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that terminate in a resistor R = 0.2 ?, as shown in the figure above. A uniform and constant magnetic
field B = 1 T ia normal to the plane of the rails. The induced current is I =1 A and flows in the direction shown. Find :a) the speed v;m/sb) the external force needed to keep the rod moving at v.N to the right.
at time t = 0, a rectangular single-loop coil of resistance R = 5.00 Ohm and...
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The length of the region containing the magnetic field is LB = 5.00
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In the figure, a long rectangular conducting loop, of width L = 20 cm, resistance R...
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Physics help! Consider the arrangement shown in the figure below. Assume R = 8.00 Ohm and...
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Consider the arrangement shown in the figure below. Assume R = 8.00 Ohm and l = 1.30 m, and a uniform 2.00-T magnetic field is directed into the page. At what speed should the bar be moved to produce a current of 0.500 A in the resistor?
In the figure below find the following (let e_1 = 13.0v and v r= 19.0 ohm...
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Problem 27.49 Constan In the figure. I =16 cm, B-0.600 T. R-4.5.and U 2.6 m/s. (Figure 1) Part A Find the current in the resistor. Express your answer using two significant figures Figure 1 of 1 I- A Submit Request Answer Part B Find the magnetic force on the bar Part B Find the magnetic force on the bar Express your answer using two significant figures. 1 of 1 ? ΑΣφ mag Part C Find the power dissipation in the...
In the figure epsilon_0 = 15 V, R = 2.6 ohm, and L = 18 H. Initially the switch is in position B and there's no current anywhere. At t = 0 the switch is thrown to position A, and at t = 10.0 s it's returned to B. (Figure 1) Find the inductor current at t = 15.0 s. Express your answer using two significant Figure. I =
A conducting rod of length l = 35.0 cm is free to slide on two parallel conducting bars as shown. Resistor R = 8.0 ohm. A constant magnetic field B = 2.50 T is directed into the page. The applied force is 5.0N and rod moves with constant speed v = 2.0m/s.. Find the current in the resistor.
The 10-cm-wide, zero-resistance slide wire shown in the figure is pushed toward the 2.0 ohm resistor at a steady speed of 0.50 m/s. The magnetic field strength is 0.55 T. (Figure 1) How big is the pushing force? Express your answer with the appropriate units. How much power does the pushing force supply to the wire? Express your answer with the appropriate units.
The 10-cm-wide, zero-resistance slide wire shown in the figure is pushed toward the 2.0 Ohm resistor at a steady speed of 0.50 m/s. The magnetic field strength is 0.25 T. (Figure 1) How big is the pushing force? Express your answer with the appropriate units. How much power does the pushing force supply to the wire? Express your answer with the appropriate units.
A metal rod of length l = 19 cm moves at constant speed v on rails of negligible resistance
that terminate in a resistor R = 0.2 ?, as shown in the figure above. A uniform and constant magnetic
field B = 1 T ia normal to the plane of the rails. The induced current is I =1 A and flows in the direction shown. Find :a) the speed v;m/sb) the external force needed to keep the rod moving at v.N to the right.
at time t = 0, a rectangular single-loop coil of resistance R =
5.00 Ohm and dimensions W = 2.00 cm and L = 10.0 cm enters a region
of constant magnetic field directed into the page with B = 0.25 T.
The length of the region containing the magnetic field is LB = 5.00
cm as shown. The coil is observed to move to the right with the
constant speed of v = 2.00 cm/s
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In the figure, a long rectangular conducting loop, of width L = 20 cm, resistance R = 11 ohm, and mass m = 0.10 kg, is hung in a horizontal, uniform magnetic field of magnitude 1.3 T that is directed into the page and that exists only above line The loop is then dropped: during its fall, it accelerates until it reaches a certain terminal speed v_ Ignoring air drag, find the terminal speed. Number Units the tolerance is +/-2%
Physics help!
Consider the arrangement shown in the figure below. Assume R = 8.00 Ohm and l = 1.30 m, and a uniform 2.00-T magnetic field is directed into the page. At what speed should the bar be moved to produce a current of 0.500 A in the resistor?
In the figure below find the following (let e_1 = 13.0v and v r= 19.0 ohm the power delivered to each resistor.
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