P142L08_Lab_Report_Template_v20230325

The motor in a toy car operates on 6.00 V, developing a 4.70 V back emf at normal speed. If it draws 3.00 A at normal speed, what current (in A) does it draw when starting? ____________  A

Which of the following statements are correct about different unit combinations? There is more than one correct answer; points are deducted for wrong answers.     Kinetic energy uses different units than other forms of energy.     Magnetic field can be measured in Volts per meter,     The units for force times distance ("Work") are the same as the units for momentum.     Ohms are equivalent to Watts per {Ampere squared}.     The  units for thermal energy are the same as those for kinetic energy.     The units for momentum times units for velocity some out the same as units for electrical energy.     Momentum has the same untis as speed.     Joules is the same as Coulombs times Volts.     The force due to gravity is measured in different units than the electrostatic force.

1.8 Cast-steel Cross-sectional pap1 = 0.5 mm. area -3 cm? 1.6 l4 = 10 cm Silicon iron Cast iron 1.4 Mild steel 1.2 Cross-sectional area 32 ст? 1.0 0.8 Cast iron Cross-sectional area-1.4 cm? = 0.1 mm 0.6 (a) 0.4 0.2A 1000 2000 3000 4000 5000 6000 7000 Magnetic field strength, H(A/m) (b) Figure (1) Silicon Iron uɔ S7 = "1 Flux density, B(T)

If a 0.6T bar magnet is pushed through a 50 turn coli with an area of 0.003m2 in 1.9sec. The induced voltage is  _________v.

An ac source supplies a 210.0 amp current to a long straight conductor. The magnetic field is measured to be 120 micro-tesla at a certain distance from the conductor. What is that distance in units of centimetres? R =___________________________ (do not forget to put the units)

A)What is the magnitude of the pushing force? F=_________ b) How much power does the pushing force supply to the wire? Express your answer with the appropriate units. P=___________ c) What is the magnitude of the induced current? Express your answer with the appropriate units. I=_____________

Determine the Total Length and Mean Length per turn of a circular coil of diameter 3.6 mm is made up of Copper consists of 1057 turns. Take the Electrical Conductivity value and Resistance of the copper coil as 55 MS/m and 10 2 respectively. Solution: Total Length of the Coil in m is ---- Mean Length of the Coil per Turn in m is

1. b) Write down the second order ordinary differential equation that represents the electric circuit. Where R = 302, C=1/7 F, L = 4 H, and the voltage source E(t) = 110 Sin377t DO NOT SOLVE THE SYSTEM FOR CURRENT. R www C E(t) = Esin ot еее

If 53.5 cm of copper wire (diameter = 0.828 mm, resistivity = 1.69 × 10-80-m) is formed into a circular loop and placed perpendicular to a uniform magnetic field that is increasing at the constant rate of 12.5 m/s, at what rate is thermal energy generated in the loop? Number Units

4

Suppose the rod is quickly moved to the right at a constant speed of 31.9 m/s. During this time, a current of ________ is induced in the _______direction

If 61.1 cm of copper wire (diameter 1.09 mm, resistivity = 1.69 x 1080-m) is formed into a circular loop and placed perpendicular to a uniform magnetic field that is increasing at the constant rate of 13.6 mT/s, at what rate is thermal energy generated in the loop? Number Units W

2

My question is if there is a building with 1000 windows and the building windows have a dimension of 2 metres width, 4 metres height and a thickness of 1.5 centimetres. It has a thermal conductivity of 0.96. And the temperature outside of the building is 35 degrees and the temperature inside of the building is 24 degrees. What is  power output that AC's in the building must do to maintain the 24 degree temperature?

Which among the following is true about Faraday’s law of Induction?a) An emf is induced in a conductor when it cuts the magnetic fluxb) An emf is induced in a conductor when it moves parallel to the magnetic fieldc) An emf is induced in a conductor when it moves perpendicular to the magnetic fieldd) An emf is induced in a conductor when it is just entering a magnetic field

A small rectangular loop of wire is located close to a long straight wire initially carrying a current I = 120 A (see figure below). Find the average emf induced in the loop if the current in the wire reverses direction in a time interval of 1/164 s.     Magnitude ________ Direction ________

The load resistance on the output side of the transformer is 100Ω.  What is the current flowing on the primary side (IP) of the transformer IP = _______________

A ground fault interrupter (GFI) is an electrical safety device which uses electromagnetic induction to compare the hot and neutral currents. If the difference between the two exceeds the GFI interrupts the circuit, as this is the maximum amount of harmless current that could "leak" into the human body. 25 mA O 250 mA 500 mA 50 mA O 5 mA

The plate on the back of a desktop computer says that it draws 2.7 A froma 120 V, 60 Hz line. For this computer, what are the average of the square of the current

Part (a)  Calculate, in Tesla squared meters, the magnitude of the change in the magnetic flux.  ΔΦ = ______ T⋅m^2 Part (b)  Calculate, in volts, the average EMF induced in the loop.  ε = ______ V Part (c)  Calculate, in amperes, current induced in the loop.  I = ______ A

0₁ 0₂ A hemispherical grounding electrode of radius a = 1m is buried into the earth as shown in the cross-sectional figure above, but it happens to be right at the boundary of two types of soil with different conductivities. The conductivities are given by ₁ = 2 × 10-³ S/m and 02 = 8 x 10-³ S/m. The intensity of the current flowing into the electrode is I = 50 A. Answer the following questions, remembering to state and justify any assumptions you are making in your derivation: 1. What is the grounding resistance of the (entirety of the) earth in this configuration? Assume the soil extends to infinity in the region below the air/soil interface. 2. How much power is lost due to Joule/Ohmic heating in each of the two regions of the two types of soil?

What inductance must be connected to a 19 pF capacitor in an oscillator capable of generating 480 nm (i.e., visible) electromagnetic waves? Number Units Use correct number of significant digits; the tolerance is +/-1 in the 2nd significant digit

4 Determine the frequency of the given instantaneous equation e=10(1000t - 69 degrees) V O 159.1Hz O 6.28kHz O 6.28mHz O None of these

Which option most accurately defines Faraday's law? Any change in the electric field over a conductor will produce an magnetic field inside a conductor. The voltage generated in a coil is inversely proportional to the cross-sectional area of the coils loops. Any change in the magnetic field over a conductor will produce an electromotive force and electric current in the conductor. The voltage generated in a coil is inversely proportional to the number of electrons in the loop.