15. How does an electric motor use the concept of electromagnetism to work?
Q: What effect does the Earth's magnetic field have on the intensity of cosmic rays striking Earth's…
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Q: by using current and magnetism, What is the basic difference between a motor and a generator?
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Q: At a particular instant, a proton moves toward the east in a uniform magnetic field that is directed…
A: According to Fleming's left hand rule, If we stretch the forefinger, middle finger, and thumb of the…
Q: Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Explain.
A: We know electromagnets are solenoids with current through it due to which they act like magnets.…
Q: How come constant magnetic fields have no work on a moving charged particle?
A: Constant magnetic fields have no work on a moving charged particle, the reason is given below,
Q: Q3. a) Ferromagnetic materials are used widely in the construction of electrical machines, such as…
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Q: An electron is moving with constant velocity in a region of space with uniform magnetic field as…
A: The direction of velocity is given : Ve→ towards right ,
Q: Why does a brushed DC motor have a commuter and what is its function?
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Q: N II II IV O I and II O IIlI and IV O I and II O Il and IV O Il and III
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Q: Identify the laws of electromagnetic induction.
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Q: What generates magnetic fields? Electrical charges at rest. O Voltages. O Motion of electrical…
A: Answer : Motion of electrical charges
Q: List two methods of producing magnetic fields.
A: Two ways of producing magnetic fields: A magnetic field can be produced at a region by placing a…
Q: List three phenomena that pertain to electromagnetism
A: Electromagnetic waves have properties of speed, wavelength, and frequency.
Q: Which properties of magnetic fields and poles are similar to properties of electric field and…
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Q: A change in magnetic flux induces an Electromotive force (emf). What are the three ways that…
A: Given statement : A change in the magnetic flux induces EMF (electro motive force). To discuss :…
Q: How can the motion of a charged particle be used to distinguish between a magnetic and an electric…
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Q: What are the two distinct characteristics that a magnet possesses?
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Q: the image below shows an example of motor effect, wherein increasing the current can increase the…
A: From Lorentz magnetic force The force experienced by a moving charge in a magnetic field is given…
Q: When the polarity of the voltage applied to a dc motor is reversed, the direction of motion does not…
A: Introduction: The DC motor is an electrical device that converts electrical energy into mechanical…
Q: 2) In a lightning bolt, a large amount of charge flows during a time of 1.80 ms. Assume that the…
A: Given: t=1.8×10-3 sr=27.0 mB=80×10-6 T
Q: Which of the following statements about the earth's magnetic field is NOT true? O The south pole of…
A: a) The south pole of the earth's magnetic field is actually magnetic north. This statement is true.…
Q: Which of the following is not an application of electromagnetic induction? Select the correct answer…
A: Electromagnetic induction of an electromotive force produced by the motion of a conductor across a…
Q: Why does a piece of iron in a current-carrying loop increase the magnetic field strength?
A: The piece of iron in a current-carrying loop increases the magnetic field of an electro magnet.
Q: Magnetic Poles and electric charges both follow the rule that "opposites attract and like repel".…
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Q: *** 28. A bar is moved along conducting rails at a constant 2.0 m/s in the presence of a 1-tesla…
A: Since, it contains multiple subparts , solution for the first three is provided.
Q: A few elements are naturally magnetic at room temperature. Select all that are True. Copper is…
A: A list of elements is given . To find = elements that are naturally magnetic at room temperature.
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- In what way are magnetic poles very different from electric charges?Why does a motor also tend to act as a generator?The concept of magnetic flux is introduced with an analogy. The analogy is O light beams passing through a loop O arrows shot through a loop O air flowing through a loop O water flowing through a pipe traffic flow on a highway Submit Request Answer
- Can the left-hand rule be used to determine the direction of rotation of an electric motor? Why or why not?Two 1.0 meter long wires are placed 25 cm apart and lay parallel to each other on a table. A 0.5 Amp current is flowing through each wire in the opposite direction. Explain what will happen to the two wires and why. Calculate the magnitude of the force on each wire. (10 pts)