8. Galvanometer
9. Induce
10. Electric motor
11. Magnetic domains
12. Deflecting force
13. Electromagnet
14. Gravitational field
8A sensitive current indicating instrument is a 9 in a transformer, changes in the magnetic field...
8A sensitive current indicating instrument is a 9 in a transformer, changes in the magnetic field of the primary coil are sensed by the nearby secondary coil CO According to Faraday's law, these changes of magnetic field intensity at the secondary coil voltage in the secondary a. produce b. inducre c eliminate electric current by rotating a coil within a stationary magnetic field is a(n) a. Electric motor b. Generator 11 Clusters of aligned iron atoms are called a. Magnets...
Questions [L] A transformer works with: AC current, BC current, CC current, DC current (2) The input side of a transformer is known as the: initial, startup, primary, input. [] The iron core transfers: current, voltage, induction, magnetism. [4] The changing magnetic flux through the secondary coil creates: 2 electricity, magnetic poles, transformers, the flux capacitor. [5] The current flowing through the primary coil creates: magnetism, electric poles, transformers, the flux inductor, [6] The primary coil has the less turns....
Help pls answer all . The fact that an electric current generates a magnetic field has allowed people to 20. cons ruct which of the following devices? (Choose as many as apply.) (A) ammeters (B) voltmeters (C) motors (D) none of these When a magnet is plunged into a coil of wire, the magnitude of the current induced is affected by which of the following? (Choose as many as apply.) (A) the speed with which the magnet is plunged into...
5- Creating Magnetism by running a current through a wire is called ______ whereas creating potential difference by changing the magnetic flux through a loop of a conductor is called ________ A- Magnetic induction, Electromagnetic induction. B- Lenz's law, Faraday's law C- Magnetic Induction, Lenz's law D-Faradays Law, Lenz's Law E- Electromagnetic induction, Faraday's law 6- The emf induced in a coil that is rotating in a magnetic field will be at a maximum when : a- The change in...
1 of 15 When a field is parallel to a plane of area, the magnetic flux through the coil is A zero. B infinite. C 2. D 5. Question 2 of 15 A moving charge experiences magnetic forces because of a A magnetic flux. B magnetic field. C magnetic current. D both a and b. Question 3 of 15 Total number of magnetic field lines passing through an area is called A magnetic flux density. B magnetic flux. C emf....
1) In a circuit with current I and voltage V, the electric power delivered to the circuit for direct current is: for alternate current with peak Io and Vo power is: 2) For a straight wire that has a length L and carries a current I, the magnetic force has a magnitude: F -T Where θ is the angle between the direction of l and B. 3) If a current I exists in a coil of wires with N turns,...
is this correct? the options faradays law, magnetic field, magnetic current, magnetic permeability, voltage, remains the same, changes Question 5 In Faraday's Law of Induction, if the strength of the magnetic field is changing, then the value of the induced magnetic current remains the same
1. When charged particles move parallel to the direction of a magnetic field, then according to the magnetic force equation, the particles will travel in a a. straight line b. circular path c. helical path d. loop 2. A 3.0-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 54.9 A and experiences a magnetic force of 20.6 N. If the magnetic field has a strength of 0.25 T at the location of...
V: olorado River Run h It (Generator In a generator, an outside source of mechanical motion supplies the energy to move a magnet in a magnetic field. A generator works just like the moving magnet in a magnetic field (as in Part II) .Click on Show Field and observe the moving magnetic field Changing Changing Summary Lenz's Law states that the induced EMF opposes the change in the magnetic field. Imagine you were actually turning the water wheel by hand...
A circular loop of radius r is rotating in a uniform external magnetic field of B. Find the magnetic flux through the loop due to the external field when the plane of the loop and the magnetic field vectors are oriented at 3 different angles, θ. The coil in an ac generator of frequency f has N turns, each having an area A and is rotated in a uniform magnetic field B. What is the peak output voltage of this...