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4. (10 pts) An electron in a cathode-ray beam passes between 2.5-cm-long parallel-plate elec- trodes that...
An electron in a cathode-ray beam passes between 2.5- cm-long parallel-plate electrodes that are 4.2 mm...
An electron in a cathode-ray beam passes between 2.5- cm-long parallel-plate electrodes that are 4.2 mm apart. A 2.3 mT,2.5-cm-wide magnetic field is perpendicular to the electric field between the plates. The electron passes through the electrodes without being deflected if the potential difference between the plates is 660 V Part A What is the electron's speed? Express your answer to two significant figures and include the appropriate units. 2 HA Value Units Submit Request Answer Part B If the...
Two parallel plates (2 cm by 2.5 cm) generate an electric field. An electron is fired...
Two parallel plates (2 cm by 2.5 cm) generate an electric field. An electron is fired with a speed of 4.4 x 107 m/s between the plates, perpendicular to the electric field direction. (See figure). The plates are charged to +/- 25 nC. a. Which plate must be positive, the top or the bottom plate? b. If the plates are 2 cm long in the direction the electron is travelling, the electron's trajectory when it leaves the plates will be...
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV, then...
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV, then passes through the d = 1.8 cm wide region of uniform magnetic field in the figure. x x x x x x x x x OV 10 kV What field strength will deflect the electron by = 11 degrees? Express your answer in mT. B= Preview mT
In a cathode-ray tube, a beam of electrons (the cathode ray) is deflected in a region...
In a cathode-ray tube, a beam of electrons (the cathode ray) is deflected in a region of electric field on its way to a fluorescent screen, as shown in the figure. Consider the parallel-plate arrangement in the figure, and assume that the electric field E = 400 N/C is uniform between the plates and that E = 0outside the plates. The beam of electrons is injected horizontally with velocity v0 = 5.0 × 106 m/s. If the width of the...
Two 2.5-cm-diameter-disks spaced 1.5 mm apart form a parallel-plate capacitor. The electric field between the disks...
Two 2.5-cm-diameter-disks spaced 1.5 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.5×105 V/m . An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.5×107 m/s . What was the electron's speed as it left the negative plate?
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV then passes through the d=2.3-cm-wide region of uniform magnetic field in the figure
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV then passes through the d=2.3-cm-wide region of uniform magnetic field in the figure(Figure 1) Part A What field strength will deflect the electron by θ = 11°?
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV, then passes through the d =1.5-cm-wide region of uniform magnetic field in the figure(Figure 1). Part A What field strength will deflect the electron by 9 = 11 °?
A parallel-plate capacitor has 2.0 cm x 2.0 cm electrodes with surface densities of +/- 1.0...
A parallel-plate capacitor has 2.0 cm x 2.0 cm electrodes with surface densities of +/- 1.0 x 10-7 C/m2. An electron enters the the center of gap between them at a horizontal velocity of 1.0 x 107 m/s. By what distance is the electron deflected away from the center-line when it reaches the far edge of the capacitor.
A potential difference (p.d.) of 4800 V is applied between the cathode and anode of the tube. The cathode is heated and...
A potential difference (p.d.) of 4800 V is applied between the cathode and anode of the tube. The cathode is heated and electrons are emitted from its surface. These electrons are then accelerated from rest and pass through a hole in the anode Cathode Anode Electrons 4800 V Show that the speed v of the electrons as they leave the anode is about 4 x 107 m s-1. V After leaving the anode, the electrons follow a parabolic path as...
Two 2.1-cm-diameter-disks spaced 1.6 mm apart form a parallel-plate capacitor. The electric field between the disks...
Two 2.1-cm-diameter-disks spaced 1.6 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.8×105 V/m . What is the voltage across the capacitor? How much charge is on each disk?An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.5×107 m/s . What was the electron's speed as it left the negative plate?
An electron in a cathode-ray beam passes between 2.5- cm-long parallel-plate electrodes that are 4.2 mm apart. A 2.3 mT,2.5-cm-wide magnetic field is perpendicular to the electric field between the plates. The electron passes through the electrodes without being deflected if the potential difference between the plates is 660 V Part A What is the electron's speed? Express your answer to two significant figures and include the appropriate units. 2 HA Value Units Submit Request Answer Part B If the...
Two parallel plates (2 cm by 2.5 cm) generate an electric field. An electron is fired with a speed of 4.4 x 107 m/s between the plates, perpendicular to the electric field direction. (See figure). The plates are charged to +/- 25 nC. a. Which plate must be positive, the top or the bottom plate? b. If the plates are 2 cm long in the direction the electron is travelling, the electron's trajectory when it leaves the plates will be...
An electron in a cathode-ray tube is accelerated through a potential difference of 10 kV, then passes through the d = 1.8 cm wide region of uniform magnetic field in the figure. x x x x x x x x x OV 10 kV What field strength will deflect the electron by = 11 degrees? Express your answer in mT. B= Preview mT
A potential difference (p.d.) of 4800 V is applied between the cathode and anode of the tube. The cathode is heated and electrons are emitted from its surface. These electrons are then accelerated from rest and pass through a hole in the anode Cathode Anode Electrons 4800 V Show that the speed v of the electrons as they leave the anode is about 4 x 107 m s-1. V After leaving the anode, the electrons follow a parabolic path as...
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