You want to design a linear motor that can deliver 1 hp at a steady bar velocity of 20 m/s. The flux density is limited to 1 T by the magnetic properties of the materials to be used. The length of the bar is to be 0.5 m, and the resistance is 0.05Ω. Find the current iA, the source voltage VT, and the efficiency of the machine. Assume that the only loss is due to the resistance RA.

Q: Consider a rechargeable lithium cell that is to be used to power a camcorder. Construct a problem in…

A: The opposition to the flow of current offered by the cells is known as the internal resistance and…

Q: A 2.00-nF capacitor with an initial charge of 4.63 μC is discharged through a 2.15-k resistor. (a)…

A: See below

Q: Consider a series RC circuit as in the figure below for which R = 7.00 MΩ, C = 4.00 µF, and  = 31.0…

A: GivenR=7 M ohm=7×106 ohmC=4.00 μF=4×10-6 Fε=31.0 V

Q: LAQ 3. In the circuit below, there are four branches; the top branch is branch number one that has…

A: Step 1: Let us redraw the circuit, showing the currents and labeling itR = 6.20 Ohm, and ΔV=6.50…

Q: A 200-volt electromotive force is applied to an RC-series circuit in which the resistance is 1000…

A: Solution: The charge and current in a series RC circuit are given by the following,  qt=CV1-e-t/RC…

Q: Suppose a motor connected to 117 V source draws 20.2 A when it first starts. (a) What is its…

A: current = voltage/resistance

Q: In Figure, suppose the switch has been closed for a time interval sufficiently long (steady state)…

A: When the switch is closed then, current flows in the circuit. R1 and R2 are in series so the equal…

Q: (a) In the figure what value must R have if the current in the circuit is to be 1.3 mA? Take ₁ = 2.7…

A:

Q: charge of 4.71 µC is discharged through a 1.45-kΩ resistor. (a) Calculate the current in the…

A:

Q: The figure below shows a capacitor, with capacitance C = 50.0 µF, and a resistor, with resistance R…

A:

Q: Switch S in in the figure is closed at time t = 0, to begin charging an initially uncharged…

A: Resistance (R) = 21.2 ohm Capacitance (C) = 17.2μF Let the potential of the battery = V

Q: Chapter 27, Problem 065 GO In the figure R₁ = 10.9 kN, R₂ 15.0 kN, C = 0.430 µF, and the ideal…

A:

Q: A heart defibrillator being used on a patient has an RC time constant of 10.0 ms due to the…

A:

Q: A simple circuit is made with a battery and a variable load resistor. The battery has an emf of e…

A: Part (a): The circuit diagram is shown as,

Q: Energy is to be transmitted over a pair of copper wires in a transmission line at a rate P with only…

A: The expression for the rms value of current in the transmission,   Since the transmission line is…

Q: In the circuit of the figure below, R1 = 21 kQ, R2 = 53 kN, L = 82 mH, and the ideal battery has 8 =…

A: (a) the current ibat through the battery.(b) the rate dibat dt.(c) ibat a long time later. Given,…

Q: figure below shows a capacitor, with capacitance C = 4.72  µF, and a resistor, with resistance R =…

A:

Q: In the figure, the total resistance is 10kΩ, and the battery's emf is 20.0 V.If the time constant is…

A:

Q: In the figure what value must R have if the current in the circuit is to be 1.1 mA? Take ε1 = 3.0 V,…

A: Current in the circuit (I) = 0.0011 Apotential of first battery (E1) = 3 V potential of second…