1. A. Discuss what electric current is with respect to how you understand drift velocity of moving electric charges. B. In what ways are electron flow and electric current the same? In what ways are these terms different? C. How is drift velocity dependent on current density?

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Q: In the circuit shown, 3 Ω a www 5 Ω h V+ g b + 7 V 4 V + f C 2V + d 6Ω www 4Ω e Determine the…

A: R1 = 5 ohm R2 = 3 ohm R3 = 4 ohm R4 = 6 ohm V1 = 7 V V2 = 2 V V3 = 4 V V4 = 6 V

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Q: Determine the momentum of a car having mass 120 kg moving with a velocity 14 m/s

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A: Solution:-

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Q: d) A radioactive source has an activity of 3.6x107 Bq due to the decay of a radioisotope with a…

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Q: 2Ω 2Ω 2Ω ww ww ww 2Ω 2Ω. 2Ω www 8Ω ww 2Ω ww 24 V ㅓㅏ 2Ω

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Q: In the figure ₁ =4.03 V, 2 = 0.838 V, R₁ = 5.400, R₂ = 1.660, R3 = 5.39 Q, and both batteries are…

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Q: In the figure 1 = 4.38 V, 2 = 1.17 V, R₁ = 3.970, R₂ = 1.902, R3 = 4.782, and both batteries are…

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.