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3. Figure 2 shows part of a system used to eject and accelerate electrons. hot filament anode B-field into x x x x page x x Xx x X -path of electrons X xx O 2000 V path and direction of electrons * downward E-field ere Figure 3 Figure 2 (a) State the phenomenon of emission of electrons from a sufficiently heated metal surface. (b) Determine the speed with which the electrons leave the anode. (c) Upon leaving the anode, the electrons enter into a region of cross magnetic and electric fields as shown in figure 3. If the intensity of the electric field is 7.5x10* V m', calculate the flux density of the magnetic field if the electrons pass through the cross fields undeflected as shown in figure 3.

3. Figure 2 shows part of a system used to eject and accelerate electrons. hot filament anode B-field into x x x x page x x Xx x X -path of electrons X xx O 2000 V path and direction of electrons * downward E-field ere Figure 3 Figure 2 (a) State the phenomenon of emission of electrons from a sufficiently heated metal surface. (b) Determine the speed with which the electrons leave the anode. (c) Upon leaving the anode, the electrons enter into a region of cross magnetic and electric fields as shown in figure 3. If the intensity of the electric field is 7.5x10* V m', calculate the flux density of the magnetic field if the electrons pass through the cross fields undeflected as shown in figure 3.

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3. Figure 2 shows part of a system used to eject and accelerate electrons. hot filament anode B-field into x x xx page X XX -path of electrons path and direction of electrons * downward E-field o 2000 V erevi Figure 3 Figure 2 (a) State the phenomenon of emission of electrons from a sufficiently heated metal surface. (b) Determine the speed with which the electrons leave the anode. (e) Upon leaving the anode, the electrons enter into a region of cross magnetic and electric fields as shown in figure 3. If the intensity of the electric field is 7.5x10* V m', calculate the flux density of the magnetic field if the electrons pass through the cross fields undeflected as shown in figure 3.
Transcribed Image Text:3. Figure 2 shows part of a system used to eject and accelerate electrons. hot filament anode B-field into x x xx page X XX -path of electrons path and direction of electrons * downward E-field o 2000 V erevi Figure 3 Figure 2 (a) State the phenomenon of emission of electrons from a sufficiently heated metal surface. (b) Determine the speed with which the electrons leave the anode. (e) Upon leaving the anode, the electrons enter into a region of cross magnetic and electric fields as shown in figure 3. If the intensity of the electric field is 7.5x10* V m', calculate the flux density of the magnetic field if the electrons pass through the cross fields undeflected as shown in figure 3.
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