A dc motor with its rotor and field coils connected in series has an internalresistance of 2.00 Ω. When running at full load on a 120 V line, itdraws a 4.00 A current. What is the emf in the rotor?
Q: The generator at a large power plant has an output of 1,800,000 W at 30,000 V. a. If it were a DC…
A:
Q: Emk e = 300V, resistor R = 10N, switch S and a toroid of N = 10* number of turns are connected in…
A:
Q: A rectangular circuit is moved at a constant velocity of 3.00 m/s into, through, and then out of a…
A: Given, the velocity of the rectangular circuit is, v=3 m/s Uniform magnetic field is, B=1.25 T…
Q: 5. A wire forms a closed square loop of side b = 16.0cm as shown in the figure. A long conductor in…
A: Solution: as given in the problem b = 16 cm a = 12 cm I = 4.5t2-10t
Q: Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A…
A: If mutual inductance M then current in one coil I will causes the flux ϕ in another coil as ϕ=MI…
Q: The Emf is equal to ξ=46.1V, R=36.4Ω. What is the current flowing through R1 (in A)?
A:
Q: 8. A pair of power transmission lines each have 2.50- resistance and carry 650 Amp. If the primary…
A: R = 22.5 I = 650 A vp = 2.4 kv Step of transformer Vs / Vp = 10/1 Vs = Vp × 10 Vs = 2.4 × 10 =…
Q: Consider an airplane below. When it is moving with a speed of 225 m/s, how much the emf induced…
A: Given: The speed of the plane is 225 m/s. The distance between wings is 60 m. The strength of the…
Q: The generator of a car idling at 1.582E+3 rpm produces 15.3 V. What will the output be at a rotation…
A: Given value--- angular speed 1 = 1.582E+3 rpm. Voltage 1 = 15.3 V. angular speed 2 = 2.886E+3 rpm.…
Q: The generator at a large power plant has an output of 1,800,000 kw at 30,000 v. a. If it were a DC…
A: We know that,P=VICurrent in the DC generator, I=PVGiven, P=1800000 kWattV=30000 Voltput all known…
Q: A rod is moving along a loop as shown in the figure. The length of the rod is 0.10 m, the velocity v…
A:
Q: The motor in a toy car operates on 6.00 V, developing a 4.50 V back emf at normal speed. If it draws…
A: Given V = 6.00V Vback = 4.50 V I = 3.20 A R =??? I1 =???..(at start Vback =0 V)
Q: A transformer is used to charge a cell phone. The number of turns on the primary coil is 600. The…
A: Given data: Number of turns of primary coil is, Np=600. Magnitude of input voltage is, Vp=120 V.…
Q: During a 58-ms interval, a change in the current in a primary coil occurs. This change leads to the…
A:
Q: Consider a transformer, used to recharge rechargeable flashlight batteries, that has 500 turns in…
A:
Q: When the coil of a motor is rotating at maximum speed, the current in the windings is 5.8 A. When…
A:
Q: nce of 10. When operating ted. -wound de motor has a field resistance of 852 and an a hat is the…
A: Given: E=120 V Eb=80 V Rf=86ΩRa=10Ω
Q: An ac electrical generator is made by turning a flat coil in a uniform constant magnetic field of…
A:
Q: A transformer is a device that takes an input voltage and produces an output voltage that can be…
A:
Q: A battery of a computer has an emf of 12 Volts. The computer uses l=360mA while running. If the…
A: Power: Power consumed by the electrical device is defined as the product of the current flowing…
Q: A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage…
A: Given V1= 330 kV V2= 775 kV P1 = 1000MW R = 2.30 ohms
Q: The motor in a toy car operates on 6.00 V, developing a 4.50 V back emf at normal speed. If it draws…
A: Formula of current at normal speed of car is as follows: I=Vs-VbR…
Q: A rod is moving along a loop as shown in the figure. The length of the rod is 0.10 m, the velocity v…
A:
Q: In the figure below, R1 =10.0kΩ, R2 =15.0kΩ, C=0.40μF, and the ideal battery has an emf E=20.0V.…
A:
Q: ull speed, and it draws 2.0 Aw s 10 02. The motor operates at
A: Given: V=120 V I =0.5 A Resistance can be 10 ohm
Q: (a) How much current flows through the motor when it is running smoothly? (b) Suddenly the string…
A: This problem is using two basic formulas of Electrodynamics 1.I=VR , where V = Voltage I=Current…
Q: A GOV motor has an ammeter hooked up to It. At motor start up, the reading is BA. A moment later,…
A: Given:- Vmotor = 60 V Istartup = 8 A The current drops to Idrop = 2A Find:- The emf of the electric…
Q: A motor has coils with a resistance of 25 Ω and operates from a voltage of 241 V. When the motor is…
A:
Q: The current flowing through a circuit is changing at a rate of 6.00 A/s. If the circuit contains a…
A: We know that,The rate of change of current,didt=6.00 A/sInductance, L=190.0HWe know that,Inductance…
Q: Two coils are placed close together in a physics lab to demonstrate Faraday's law of induction. A…
A:
Q: The generator of a car idling at 1.638E+3 rpm produces 11.6 V. What will the output be at a rotation…
A:
Q: During a 74-ms interval, a change in the current in a primary coil occurs. This change leads to the…
A:
Q: 5.50 kN S 30.0 µF At t=0.0 s, the switch S is closed with the capacitor initially uncharged. At…
A:
Q: A dc motor with its rotor and field coils connected in series has an internalresistance of 2.00 Ω.…
A: The power consumed by a resistor can be given by the following relations. P=I2R=V2R=VI
Q: An electric power station that operates at 15 kV and uses a 20:1 step-up ideal transformer is…
A: The voltage that is sent is,
Q: A wire 2 m long moves perpendicular through a 0.08 T field at a speed of 7 m/s. What EMF is induced?…
A: Answer: Given, Length of wire is L=2 m Speed of wire is V=7 m/s Magnetic field is ,B=0.08 T Also…
Q: 6.43 The current in an 80-mH inductor increases from 0 to 60 mA. How much energy is stored in the…
A:
Q: A 140 V emf is across a transformer's 190-turn primary coil. How many turns should the secondary…
A:
A dc motor with its rotor and field coils connected in series has an internal
resistance of 2.00 Ω. When running at full load on a 120 V line, it
draws a 4.00 A current. What is the emf in the rotor?
Step by step
Solved in 2 steps
