1) An electron travels from the negative to the positive terminal of a 9 V battery through a wire that contains a light

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1 An Electron Travels From The Negative To The Positive Terminal Of A 9 V Battery Through A Wire That Contains A Light 1 (85.7 KiB) Viewed 44 times

1) An electron travels from the negative to the positive terminal of a 9 V battery through a wire that contains a light bulb. a) Did its energy increase or decrease? Explain your answer. b) How much did its energy change by? Give your answer in units of Joules (J) and in units of electron-volts (eV). c) How fast would the electron be travelling if all this energy was in the form of kinetic energy? NOTE: The mass of an electron is me = 9.11 × 10 -5 kg. The charge of an electron is e=-1.60 × 10 -"C 3) An electric potential difference of 12 V is found to produce a current of 0.40 A in a 3.2 m length of wire with a uniform radius of 0.40 cm. Calculate: a) the resistance of the wire. b) the resistivity of the wire.