In the experiment, your repeated measurements of resistance result in a mean value of 4.96N. If the reference value is 4.71N. What is the percent error of the mean value? (Please submit your answer with the % sign.)
Q: Compute the voltage drop along a 22-mm length of the household no. 14 copper wire (used in 15-A…
A: R=ρLπd2/4=4ρLπd2=41.68×10-8Ω⋅m22 mm10-3 m1 mmπ1.628 mm10-3 m1 mm2=1.78×10-4 ohm
Q: Determine the experimentally resistance (R) from the slope, and calculate δ%.
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A: Given:I=3.0 AR=7Ω
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A: A material of Resistivity = 3.333 Area of cross-section = 25 cm2 Length = 15 cmResistance =?
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- If the battery in the circuit below is 15.64V, resistor R1=349.44N, and resistor R2=284.012, what is the magnitude of the current flowing through the circuit? Please give your answer in units of milli-Amps (mA). R2 В I R1 A Note: It is understood that the unit of your answer is in milli-Amperes (mA), however do not explicitly includeDon't copy from othersIf a brass wire is 4 cm long with a diameter of 1.3 cm, calculate its resistance. Determine the voltage drop over the brass wire for a 1.0 A current in the circuit.
- Suppose the current in a conductor decreases exponentially with time according to the equation I(t) = I,er, where I, is the initial current (at t = 0), and t is a constant having dimensions of time. Consider a fixed observation point within the conductor. (Use the following as necessary: I, and t) (a) How much charge passes this point between t = 0 and t = t? (If applicable, round any coefficients to 3 decimal places.) Q(t) = (b) How much charge passes this point between t = 0 and t = 10t? (If applicable, round any coefficients to 5 decimal places.) Q(10t) = %3D (c) How much charge passes this point between t = O and t = o? (If applicable, round any coefficients to 3 decimal places.) Q(0) =In cardiovascular physiology the resistance R of a blood vessel of radius r and long L obeys the following equation R=8Ln/πr4where the Greek letter eta represents the viscosity of the blood. Suppose that a certain arteriole reduces its resistance at the rate of –1,000mmHg ∙ min. ∙ L-1 per minute elapsed. At what rate does its radius increase the instant it has a magnitude of 150μm and the resistance R of the arteriole is 3 x 106mmHg ∙ min. ∙ L-1?The resistivity of copper 2*10⁸m.work out the resistance of copper wire of 1mm² cross sectional area and 3m long?
- Compute the voltage drop along a 28-m length of household no. 14 copper wire (used in 15-A circuits). The wire has diameter 1.628 mm and carries a 13-A current. The resistivity of copper is 1.68×10¬8 N · m. Express your answer to two significant figures and include the appropriate units. HA ? V = Value Units %3DConsider the circuit shown in the figure below. (Assume R = 4.80 Ω and ΔV = 12.0 V.) (a) Find the equivalent resistance of the circuit in the figure. I FOUND IT TO BE 12.11 OHMS(b) Find each current in the circuit.(c) Find the potential difference across each resistor.(d) Find the power dissipated by each resistor.During 23 seconds of use, 200 C of charge flow through a microwave oven .compute the size of the electric current?
- The total charge flowing out of one end of a small copper wire and into anunknown device is determined to follow the relationship q(t) = 5e−t/2 C, where t is expressed in seconds. Calculate the current in A flowing into the device,taking note of the sign if t = 1 sec. Write the answer in two (2) decimal places.The resistance R to the flow of blood varies directly with a blood vessels length L and inversely with the 4th power of its radius r. If R = 144 when L = 24 and r = .5 find an equation relating R, l, and r. Find R if L = 6 and r = .25.A car battery is rated at 1,020 AH (i.e., amps x hours). Calculate the number of coulombs this is equivalent to. Your Answer: