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2. In Fig. 2-1, a current I fows through a thin strip of metal. The strip...
A current I = 19.0 A flows through a strip of metal of width 3.5 cm...
A current I = 19.0 A flows through a strip of metal of width 3.5 cm (the figure below). An electromagnet is switched on so that there is a uniform magnetic field of magnitude 0.49 T directed into the page, and the Hall voltage is measured to be 6.3
: A metal strip 2 cm wide and 1 mm thick is placed in a magnetic...
: A metal strip 2 cm wide and 1 mm thick is placed in a magnetic field with B= 1.6 eberm2 such that thefield is normal to the surface of the strip. If a Hall voltage of 22㎶ develops across the strip when a current of 220 A is set up in the strip, find the number of conducting electrons per unit volume in the metal strip?
Use the right-hand-rule, determine the direction of the magnetic force on a current carrying strip in...
Use the right-hand-rule, determine the direction of the magnetic force on a current carrying strip in the following diagram, where the magnetic field is parallel to the surface of this paper: The magnetic force on the current strip is directed: a. to the left b. to the right upward d. c. downward "into the paper" e. f. "out of the paper" Use the right-hand-rule, determine the direction of the magnetic force on a current carrying strip in the following diagram,...
Problem 02 The parallel plates in Fig.23.9a have an area A 0.2 and separation distance d 0.01 m. ...
Problem 02 The parallel plates in Fig.23.9a have an area A 0.2 and separation distance d 0.01 m. The original potential difference between them is Δ VO-300 V which decreases to AV 100V when a dielectric sheet fills the space between the plates, see Fig.23.9b. (a) Calculate the capacitance Co, the magnitude of the charge and the magnitude of the electric field Eo. (b) Calculate the final capacitance Cand the dielectric constant k. (c) Find the magnitudes of the induced...
1.) We consider a thin metal strip with conductivity o and thickness d oriented in the...
1.) We consider a thin metal strip with conductivity o and thickness d oriented in the (x,y)-plane and moving at constant velocity v = vj in the y-direction, as shown. The metal strip falls in the air gap between the rectangular pieces of an electromagnet. The cross-sectional with of each pole is w along the r-direction) and length 1 (along the vertical). The electromagnet produces the magnetic field B = Bk (out-of-the-page). We treat this problem approximately by considering the...
2) The force that a magnetic field exerts on a charged particle is given by Ę...
2) The force that a magnetic field exerts on a charged particle is given by Ę = qö xĒ. A particle with mass m= 2.0x108 kg and charge q = +2.5x10-8C has an initial speed of v = 4+2 x 103 m/s (in the x- y plane). The magnetic field vector and velocity vector are B and û, respectively are displayed on the coordinate axis below. The angle between the vectors is 135 degrees. Use unit vector notation when describing...
Problem 1 In this problem, we will analyze the method used by J.J. Thomson in 1897...
Problem 1 In this problem, we will analyze the method used by J.J. Thomson in 1897 to measure the charge/mass ratio of the electron. A beam of electrons with charge q and mass m and velocity V vi enters a region that has a uniform electric field E Ei and a uniform magnetic field B- Bi. Thus the magnetic and electric fields are at right angles to each other and to the beam (a) Suppose that E is adjusted so...
Two parallel conducting plates of equal areas A are separated by a small distance d I...
Two parallel conducting plates of equal areas A are separated by a small distance d I hey are charged to a potential difference Vby connecting a battery between them. Use these numbers: A 3.00 x 10 2 m.d-0.01cm and V- 42.0 V Charge +O Plate area .A -o a) Find the electric field between the plates. (Hint remember that the units on the electric field can be either N/C or V/m.) b) Use the value ofthe Efield to findthe surface...
Suppose the parallel plates in Fig. 24.15 each have an area of 2000 cm2 (2.00 x 101m2) and are 1....
Suppose the parallel plates in Fig. 24.15 each have an area of 2000 cm2 (2.00 x 101m2) and are 1.00 cm (1.00 x 104m) apart, we connect the capacitor to a power supply, charge it to a potential difference V。. 3.00kv, and disconnect the power supply. We then insert a sheet of insulating plastic material between the plates, completely filling the space between them. We find that the potential difference decreases to 1.00kV while the charge on each capacitor plate...
27A - Magnetic Fields and Forces 1) The force that a magnetic field exerts on a...
27A - Magnetic Fields and Forces 1) The force that a magnetic field exerts on a charged particle is given by È = qö x B. Assume charge q=+1.5 nC, B = 0.30 T and 0 = 25 m/s. The directions of the magnetic field vector and velocity vector are ] and , respectively are displayed on the coordinate axis below. The angle between the vectors is 90, degrees. Use unit vector notation when describing the vectors. z (0, 0,...
: A metal strip 2 cm wide and 1 mm thick is placed in a magnetic field with B= 1.6 eberm2 such that thefield is normal to the surface of the strip. If a Hall voltage of 22㎶ develops across the strip when a current of 220 A is set up in the strip, find the number of conducting electrons per unit volume in the metal strip?
Use the right-hand-rule, determine the direction of the magnetic force on a current carrying strip in the following diagram, where the magnetic field is parallel to the surface of this paper: The magnetic force on the current strip is directed: a. to the left b. to the right upward d. c. downward "into the paper" e. f. "out of the paper" Use the right-hand-rule, determine the direction of the magnetic force on a current carrying strip in the following diagram,...
Problem 02 The parallel plates in Fig.23.9a have an area A 0.2 and separation distance d 0.01 m. The original potential difference between them is Δ VO-300 V which decreases to AV 100V when a dielectric sheet fills the space between the plates, see Fig.23.9b. (a) Calculate the capacitance Co, the magnitude of the charge and the magnitude of the electric field Eo. (b) Calculate the final capacitance Cand the dielectric constant k. (c) Find the magnitudes of the induced...
1.) We consider a thin metal strip with conductivity o and thickness d oriented in the (x,y)-plane and moving at constant velocity v = vj in the y-direction, as shown. The metal strip falls in the air gap between the rectangular pieces of an electromagnet. The cross-sectional with of each pole is w along the r-direction) and length 1 (along the vertical). The electromagnet produces the magnetic field B = Bk (out-of-the-page). We treat this problem approximately by considering the...
2) The force that a magnetic field exerts on a charged particle is given by Ę = qö xĒ. A particle with mass m= 2.0x108 kg and charge q = +2.5x10-8C has an initial speed of v = 4+2 x 103 m/s (in the x- y plane). The magnetic field vector and velocity vector are B and û, respectively are displayed on the coordinate axis below. The angle between the vectors is 135 degrees. Use unit vector notation when describing...
Problem 1 In this problem, we will analyze the method used by J.J. Thomson in 1897 to measure the charge/mass ratio of the electron. A beam of electrons with charge q and mass m and velocity V vi enters a region that has a uniform electric field E Ei and a uniform magnetic field B- Bi. Thus the magnetic and electric fields are at right angles to each other and to the beam (a) Suppose that E is adjusted so...
Two parallel conducting plates of equal areas A are separated by a small distance d I hey are charged to a potential difference Vby connecting a battery between them. Use these numbers: A 3.00 x 10 2 m.d-0.01cm and V- 42.0 V Charge +O Plate area .A -o a) Find the electric field between the plates. (Hint remember that the units on the electric field can be either N/C or V/m.) b) Use the value ofthe Efield to findthe surface...
Suppose the parallel plates in Fig. 24.15 each have an area of 2000 cm2 (2.00 x 101m2) and are 1.00 cm (1.00 x 104m) apart, we connect the capacitor to a power supply, charge it to a potential difference V。. 3.00kv, and disconnect the power supply. We then insert a sheet of insulating plastic material between the plates, completely filling the space between them. We find that the potential difference decreases to 1.00kV while the charge on each capacitor plate...
27A - Magnetic Fields and Forces 1) The force that a magnetic field exerts on a charged particle is given by È = qö x B. Assume charge q=+1.5 nC, B = 0.30 T and 0 = 25 m/s. The directions of the magnetic field vector and velocity vector are ] and , respectively are displayed on the coordinate axis below. The angle between the vectors is 90, degrees. Use unit vector notation when describing the vectors. z (0, 0,...
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