The wiring in a motor has resistance of 3.0- Q and produces a back emf of 3.0-V when connected to a 9.0-V battery of negligible resistance. Find the current flow through the motor.

Q: A galvanometer has a coil resistance of Rgalv=22.4⁢ Ω. It is to be made into a voltmeter with a…

A: Given:  Rgalv = 22.4 ohms Voltage = V = 265 Volts Igalv = 195.5 mA For galvanometer to act as…

Q: A battery with = 2.00 V and no internal resistance supplies current to the circuit shown in the…

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Q: the battery immediately after the switch is closed and through the battery a long time after the…

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Q: Suppose a motor connected to a 120 V source draws 10.0 A when it first starts. (a) What is its…

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Q: A galvanometer has a coil resistance of Rgalv = 61.7 Q. It is to be made into an ammeter with a…

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Q: For a long period of time the switch S in position "b". At t = 0 s, the switch S moved from position…

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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: The Emf is equal to ξ=46.1V, R=36.4Ω. What is the current flowing through R1 (in A)?

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Q: Suppose your waffle iron is rated at 0.70 kW when connected to a 3.30 x 102 v source. (a) What…

A: Answer :-  Given  Power (P) = 0.70 kW = 0.70 × 1000 watt  P = 700 watt  Potential (V) = 3.30 × 102 V…

Q: A motor operating on a 270 V source has a 165 V back emf at operating speed and draws a 12.5 A…

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Q: A motor has an armature resistance of 3.75 Ω.If it draws 8.20 AA when running at full speed and…

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Q: uppose a motor connected to a 130 V source draws 19.0 A when it first starts. (a) What is its…

A: Voltage applied to motor, V =130 Vcurrent draws , I = 19 A

Q: A galvanometer has a coil resistance of Realy = 84.9 S2. It is to be made into a voltmeter with a…

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Q: A 32.0-0 resistor and a 20.0-0 are connected in parallel, and the combination is applied across a…

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Q: (a) What is the unknown emfx in a potentiometer that balances when Rx is 10.0 Ω , and balances when…

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Q: The rod shown below moves to the right on essentially zero-resistance rails at a speed of v=2.20…

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Q: The owner of a 3 hectares piggery located at Texas owned a 5 kw of electric generator pump.…

A: Here, We Have, V = 120 and 140 volt R = 0.42 ohm

Q: In the circuit shown, the switch has been open for a long time. At time t = 0 the switch is then…

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Q: What direct current will produce the same amount of thermal energy, in a particular resistor, as an…

A: The power dissipated in a resistor connected to an AC source is, Pavg=I2rmsRthen, Pavg=I2R2 the…

Q: Suppose a motor connected to a 120 V source draws 10.0 A when it first starts. (a) What is its…

A: Given that, Supply connected to the motor, Vs=120 V Current drawn from the supply, I=10 A Back emf…

Q: n the figure, R= 20.0 Q, L= 10.0 H, the ideal battery has E= 13.0 V, and the fuse in the upper…

A: Given that,In the Figure R=20.0Ω                        L=10.0H                       E=13.0vFuse in…

Q: The starting motor of a car is turning too slowly, andthe mechanic has to decide whether to replace…

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Q: Find the current in the switch at the same time. The current through the conductor at this time is…

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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 light - rail commuter train draws 620 A of 700 V DC electricity when accelerating.a) What is its…

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Q: A metal rod makes contact with a partial circuit and completes the circuit. The circuit area is…

A: Given:                    B=0.150 T                     V=2.00 m/s                    R=3.00 ohm…

Q: (a) What is the unknown emfx in a potentiometer that balances when Rx is 10.0 Ω , and balances when…

A: (a)  From the balance condition of the potentiometer, the unknown standard emf can be given by,

Q: A galvanometer has a resistance of 16 N and gives a full scale deflection and when a current of 20…

A: To find-External resistance (R)=?Given-Resistance of galvanometer (G)=16 ohmMaximum current which…

Q: Suppose a motor connected to a 115 V source draws 19.0 A when it first starts. a) What is its…

A: Voltage applied to motor, V =115 Vcurrent drawn, I = 19.0 AFrom ohms law Resistance =

Q: A 1.60×103 watt iron is connected to a 1.20×102 volt line and is operated for 2.75 hours. Calculate…

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Q: Integrated ConceptsA light-rail commuter train draws 630 A of 650-V DC electricity when…

A: a) Using law of conservation of energy, the electrical energy is equal to change in kinetic energy.…

Q: of 202/cm. The rod moves to the left at v= 4 m/s. If B = 0.75 the current in the circuit (a) when a…

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Q: An array of solar panels produces 8.65 A of direct current at a potential difference of 148 V. The…

A: Given: A solar panel produces a current of 8.65 A at a potential difference of 148 V.  The…

Q: Problem 4:  Find the power dissipated (in W) in each of the following extension cords:   Part (a)…

A: The power dissipated,   P = I2 × R  Where , The current = I                The resistance = R

Q: Suppose the emf of the battery in the circuit varies with time t so that the current is given by…

A: Basic Details The loop rule form the circuit, the sum of the emf of the battery and the emf of the…