Answered: Which part of a motor can be used to…

Which part of a motor can be used to identify a "DC motor"? O a. Loop or coil O b. slip rings O c. Magnetic poles O d. Split rings

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies

Section: Chapter Questions

Problem 20PE: The 12.0 cm long rod in Figure 23.11 moves at 4.00 m/s. What is the strength of the magnetic field...

See similar textbooks

Related questions

Q: A 5.0-A current flows through a 10-turn square coil each side of length 0.12 m. the coil is in a…

Q: How does induction stove work refering to Faraday's Law

A: Faraday’s Law of Electromagnetic Induction states that: An emf is induced whenever a coil or…

Q: You are designing a generator to be run with a wind turbine that rotates at 6.67 rad/s. You are…

A: Faraday performed experiments to check whether current is produced in a closed wire when placed in a…

Q: 4- Find the direction of the magnetic field in the solenoid in figure at the instant the switch is…

A: By using right hand thumb rule we can find direction of magnetic field Here direction of current (…

Q: what happens when you take away the magnetic field from an induced magnet

A: The magnetism is produced by the magnetic field around the magnets.

Q: Predict: If a stronger magnet is used to create the change in magnetic field, the current produced…

A: Given : What happens to the current through the coil if a stronger magnet is bought near to it ?

Q: Identify the laws of electromagnetic induction.

Q: Earth’s magnetic field induces some degree of magnetism in most of the iron objects around you. With…

A: Iron have a special property of magnetisation. They easily get magnetized when they are placed in…

Q: What is a transformer? Why does it work?

Q: State Faraday’s Law of Induction.

A: Faraday's law of induction has two parts, The first law describes the induction of emf in a…

Q: 37. "Moving the magnet toward or away from the coil." "Moving a current carrying coil toward or away…

Q: Demonstrate the changes in a charge moving in a magnetic field

Q: Describe the difference in what happens when you move the magnet through the coil slowly vs.…

A: The moment of the magnet through the coil gives us induced voltage in the coil which is produced due…

Q: What current in a solenoid 15.0-cm long wound with 100 turns would produce a magnetic field equal to…

Q: In Figure 11, a negative charge is moving in a downward direction near an electric current passing…

Q: How might a magnetic force that can be turned on or off be used

Q: What is magnetic field induction? Define magnetic field induction.

Q: The magnetic field due to current in wires in your homecan affect a compass. Discuss the effect in…

A: Answer: The standard value of current for household circuits are 20 Ampere. When the current…

Q: On the freeway, there are also induction loops to detect cars’ speed. Concidering when you move a…

A: In the coil, the voltage is induced due to the relative motion between the coil and the magnet.

Q: A electric motor has a current running through it and it is rotating counterclockwise in an external…

A: We have an electric motor with a current running through it and it is rotating counterclockwise in…

Q: 2. A transformer is made by winding a primary coil of 300 turns around an iron core. A secondary…

Q: Magnetic Poles and electric charges both follow the rule that "opposites attract and like repel".…

Q: Define AND EXPLAIN Faraday’s Law

A: Faraday law is also known as the law of electromagnetism which is used to calculate the…

Q: To explain the laws of electromagnetic induction (Faraday’s law and Lenz’s law) Faraday introduced…

Q: describe some of the differences between a motor and an AC generator, and discuss how each use the…

A: The differences in between motor and generator are enlisted as follows, Motor Alternate Current…

Q: A coil is connected to a 1.5V battery. Now, this battery is replaced by 3V battery. What will happen…

A: The magnetic field due to the circular loop carrying current at the center is given by B = μo4π2π…

Q: 6. A 10 cm long rod is placed on two parallel rails so that it completes a loop. This device is…

A: Given Length of rod l=0.1 m Magnetic field B=4T

Q: Explain in detail why current flows in a coil when a magnet is pushed in and out of the coil.

A: If the wire is then wound into a coil, the magnetic flux is greatly intense manufacturing a static…

Q: 14. In the figure, a bar magnet moves towards the solenoid. The direction of the induced current…

A: By Using lenzs law The direction of induced current from through resistor is from a to b. Thus…

Q: Your camping buddy has an idea for a light to go inside your tent He happens to have a powerful (and…

Q: 9. Suppose the wire in a cars alternator is wrapped 500 times. It takes an average of 2.5x10 seconds…

A: Write a given values of this question. N=500t=2.5×10-4sϕ=2×10-4Web

Q: 5- The bar magnet shown in the figure is moved completely through the loop. Find the direction of…

A: Given: A bar magnet and it is inserted to a loop connected to circuit with resistor.

Q: Conceptual Question: An electric generator utilizes the principle of magnetic induction to generate…

A: We know that an electric generator works under the principle of magnetic induction to generate a DC…

Q: 5. A bar magnet falls through a horizontal loop of wire with the south pole entering first. When the…

Q: Differentiate the Magnetic field produced by a current on a circular loop than in a straight wire

Q: 47. A number of small magnetic compasses on a wood tabletop are oriented as shown above. These…

A: Direction of magnetic compass

Q: 9. The magnetic field around an electromagnet is produced by (a) a permanent magnet (b) the…

Q: _ 27. How can the magnetic field in a coil of wire field be increased? a) By increasing the current…

A: We are allowed to give the explanation of first question only which is given below. Please repost…

Q: student experimenting with magnets turns a circular loop of wire of radius 4.0 cm from a horizontal…

Q: question / if the length of the copper leg moves on a stalk in the form of a suit equal to (l=0.1 m)…

A: Given that, l =0.1 m B =1 T v =0.1 m/s

Q: State and explain Faraday's Law.

A: Faraday’s law of electromagnetic induction which is also known as Faraday’s law is the basic law of…

Q: In 150 words, describe how a generator produces an electric current using electromagnetic induction.…

Q: wo coils are placed close together in a physics lab to demonstrate Faraday's law of induction. A…

A: Initial current ,I1=4.90A final current, I2=0A time required, dt=1.4*10-3s so di/dt…

Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

Which part of a motor can be used to identify
a "DC motor"?
O a. Loop or coil
O b. slip rings
O c. Magnetic poles
O d. Split rings

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Use Faraday’s law, Lenz’s law, and RHR—l to show that the magnetic force on the current in the moving rod in Figure 23.11 is in the opposite direction of its velocity.
Integrated Concepts A lightning bolt produces a rapidly varying magnetic field. It the belt strikes the earth vertically and acts like a current in a long straight wire, it will induce a voltage in a loop aligned like that in Figure 23.57 (b). What voltage is induced in a 1.00 m diameter loop 50.0 m from a 2.00106A lightning strike, if the current falls to zero in 25.0s ? (b) Discuss circumstances under which such a voltage would produce noticeable consequences.
Indicate whether the magnetic field created in each of the three situations shown in Figure 22.59 is into or out of the page on the left and right of the current.
What are the directions of the currents in the loop and coils shown in Figure 22.61?
A magnet attracts a piece of iron. The iron can then attract another piece of iron. On the basis of domain alignment, explain what happens in each piece of Iron.
The copper sheet shown below is partially in a magnetic field. When it is pulled to the right, a resisting force pulls it to the left. Explain. What happen if the sheet is pushed to the left?
What is the back emf of a 120 V motor that draws 3.00 A at its normal speed and 20.0 A when first starling?
Show tliat the Hall voltage across wires made of the same material, carrying identical currents, and subjected to the same magnetic field is inversely proportional to their diameters. (Hint: Consider haw drift velocity depends on wire diameter.)
Repeat the previous problem with a new magnetic field of (0.4i+1.2k)T .
Why would a magnetohydrodynamic drive work better in ocean water than in fresh water? Also, why would superconducting magnets be desirable?
The quantity B ds in Amperes law is called magnetic circulation. Figures 30.10 and 30.13 slum paths around which the magnetic circulation is evaluated. Each of these paths encloses an area. What is the magnetic flux through each area? Explain your answer.
Is the Earth's magnetic field parallel to the ground at all locations? If not, where is it parallel to the surface? Is its strength the same at all locations? If not, where is it greatest?