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(d) Explain if the same magnitude of magnetic force exerted on a proton moving through the field with the same speed in (c). (e) If there is a straight wire with current of 6.0 A placed 1.5 mm near the slice of semiconductor as shown in Figure 1(c), determine the magnitude and direction of the magnetic field at point A. Bas Sesternal X XAX X XI15 mm X XX ХXXXX

(d) Explain if the same magnitude of magnetic force exerted on a proton moving through the field with the same speed in (c). (e) If there is a straight wire with current of 6.0 A placed 1.5 mm near the slice of semiconductor as shown in Figure 1(c), determine the magnitude and direction of the magnetic field at point A. Bas Sesternal X XAX X XI15 mm X XX ХXXXX

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Tiny sensors in smartphone could be used to determine the position of the phone on the Earth's surface by measuring the Earth's magnetic field. A current I is applied to a slice of semiconductor as shown in Figure 1(a). Besternal X X X X X X X XO Semiconductor ХXXXX Figure 1(a): without magnetic field Figure 1(b): with magnetic field After detecting magnetic field, Betermal of 2.55 mT on the slice, the electrons collect at the top edge of the slice and the bottom edge becomes positively charged as shown in Figure 1(b). (a) Explain why the electrons collect at the top of the edge of the slice. (b) Determine the magnitude of the maximum magnetic force that could be exerted on the electron if the electron moves through the field with a speed of 5.5 x 10° m s-1. (c) What is the magnitude of the maximum acceleration of the electron? (d) Explain if the same magnitude of magnetic force exerted on a proton moving through the field with the same speed in (c). (e) If there is a straight wire with current of 6.0 A placed 1.5 mm near the slice of semiconductor as shown in Figure 1(e), determine the magnitude and direction of the magnetic field at point A. Besternal X XAX X 11.5 mm X XXO X X XX Figure 1(c): straight wire with current
Transcribed Image Text:Tiny sensors in smartphone could be used to determine the position of the phone on the Earth's surface by measuring the Earth's magnetic field. A current I is applied to a slice of semiconductor as shown in Figure 1(a). Besternal X X X X X X X XO Semiconductor ХXXXX Figure 1(a): without magnetic field Figure 1(b): with magnetic field After detecting magnetic field, Betermal of 2.55 mT on the slice, the electrons collect at the top edge of the slice and the bottom edge becomes positively charged as shown in Figure 1(b). (a) Explain why the electrons collect at the top of the edge of the slice. (b) Determine the magnitude of the maximum magnetic force that could be exerted on the electron if the electron moves through the field with a speed of 5.5 x 10° m s-1. (c) What is the magnitude of the maximum acceleration of the electron? (d) Explain if the same magnitude of magnetic force exerted on a proton moving through the field with the same speed in (c). (e) If there is a straight wire with current of 6.0 A placed 1.5 mm near the slice of semiconductor as shown in Figure 1(e), determine the magnitude and direction of the magnetic field at point A. Besternal X XAX X 11.5 mm X XXO X X XX Figure 1(c): straight wire with current
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