The radius r of a wire grows linearly with its length I according to r(x) = a + z, where z is the distance from the thinner end of the wire with radius a. Express the resistance as a function of the resistivity of the material p, the length of the wire I and the radi a and b. View Available Hint(O
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- Part A What is the equivalent resistance of group (a) of resistors shown in the figure? (Figure 1) Express your answer in ohms to two significant figures. Req= ΤΟ ΑΣΦ Submit Request Answer Part B ? Ω What is the equivalent resistance of group (b) of resistors shown in the figure? Express your answer in ohms. Η ΑΣΦ Req = Submit Request Answer Part C ? Ω What is the equivalent resistance of group (c) of resistors shown in the figure? Express your answer in ohms. Req= -Ο ΑΣΦ Submit Request Answer Provide Feedback ? Ω ConstaChoose true or false for each statement regarding the resistance of a wire. While maintaining a constant voltage V, the current I increases when the resistivity p of a wire decreases. O While maintaining a constant voltage V, the current I increases when the cross-sectional area A of a wire expands. The resistivity p is proportional to the resistance R of a wire. Submit Answer Tries 0/2 Choose true or false for each statement regarding resistors in a circuit. O Three identical resistors in series have one third the resistance of each individual one. 8 If you connect two different resistors in parallel in a circuit, then the current that flows through each of them is different. If you connect two different resistors in parallel in a circuit, then the voltage across each of them is different.With eh following values, what is the current through R1, in A? Use positive for to the right, and negative for to the left. V1 = 10.9 V V2 = 16.1 V R1 = 26 Ω R2 = 77 Ω
- For each of the three simple circuit boards you will need to calculate the total resistance Reg for the entire circuit board by using the measured resistances of each of the resistors, and the equations given to you in the theory section. Then using the applied voltage of 2V, as the theoretical voltage Vth for the entire circuit board you can calculate the theoretical current, ith, for the entire circuit board. Table 1(Resistors in series) R(Q) 310 10 100 200 Req 10Ω 1000 200Ω iex(A) 0.0074 0.0064 0.068 0.0064 0.650 0.0064 1.283 Using the equations for resistors in series calculate the theoretical voltages, and currents for each of the resistors, and the entire circuit. Use the measured values of the resistance in your calculations. Then calculate the % errors. Show work. Vex(V) 2.006 ith(A) Vth(V) % Error i % Error VNote: Use correct number of significant digits. The tolerance is ± 1 in the 3rd significant digit.The resistance R of a conductor depends on its shape and physical dimensions and a property of the material called the resistivity p What does the resistivity of a material depend upon? Assuming that the resistivity of copper is a quarter of that of aluminium and that the density of copper is three times that of aluminimium, find the ratio of the masses of copper and aluminium wires with the same length and the same resistance but with different cross - sectional areas .