4. What device was used in conducting various experiments such as with magnetically induced emf by Faraday? A. Voltmeter B. Ohmmeter C. Ammeter D. Galvanometer 5. "Moving the magnet toward or away from the coil." “Moving a current carrying coil toward or away from the coil." Based from these actions, what do they have in common? A. All these actions do induce a current in a coil B. All these actions were supported by stationary motion C. All these actions are in a closed circuit D. All these actions used magnets to move the galvanometer to another place. 6. Faraday's law of induction, the induced emf is proportional to the_ through the coil. A. Type of metal coil _of magnetic flux B. Color of the coil C. Quantity of magnets D. Rate of change

4. What device was used in conducting various experiments such as with magnetically induced emf by Faraday? A. Voltmeter B. Ohmmeter C. Ammeter D. Galvanometer 5. "Moving the magnet toward or away from the coil." “Moving a current carrying coil toward or away from the coil." Based from these actions, what do they have in common? A. All these actions do induce a current in a coil B. All these actions were supported by stationary motion C. All these actions are in a closed circuit D. All these actions used magnets to move the galvanometer to another place. 6. Faraday's law of induction, the induced emf is proportional to the_ through the coil. A. Type of metal coil _of magnetic flux B. Color of the coil C. Quantity of magnets D. Rate of change

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter20: Induced Voltages And Inductance

Section: Chapter Questions

Problem 9CQ: Eddy current are induced currents set up in a piece of metal when it moves through a nonuniform...

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Similar questions

When a magnet is thrust into a coil as in Figure 23.4(a), what is the direction of the louse exerted by the coil on the magnet? Draw a diagram showing the direction of the current induced in the coil and the magnetic field it produces, to justify your response. How does the magnitude of the force depend on the resistance of the galvanometer?
(a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60V Hall voltage between its wing lips when in level flight over the north magnetic pole, where the Earth's field strength is 8.00105T ? (b) Explain why very little current flows as a result of this Hall voltage.
What is the value of the magnetic flux through the coil in Figure 23.56 (b) due to the wire?
A velocity selector in a mass spectrometer uses a 0.100T magnetic field. (a) What electric field strength is needed to select a speed of 4.00106m/s ? (b) What is the voltage between the plates if they are separated by 1.00 cm?
If a current flows in the Satellite Tether shown in Figure 23.12, use Faraday’s law, Lenz'S law, and RHRl to show that there is a magnetic force on the rather in the direction opposite to its velocity.
(a) A DC power line for a light-rail system carries 1000 A at an angle of 30.0° to the Earth’s 5.00105-T field. What is the force on a 100-m section of this line? (b) Discuss practical concerns this presents, if any.
(a) By how many percent is the torque of a motor decreased if its permanent magnets lose 5.0% of their strength? (b) How many percent would the current need to be increased to return the torque to original values?
Measurements affect the system being measured, such as the current loop in Figure 22.56. (a) Estimate file field the loop creates by calculating the field at the center of a circular loop 20.0 cm in diameter carrying 5.00 A. (b) What is the smallest field strength this loop can be used to measure, if its field must alter the measured field by less than 0.0100%?
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Verify the units obtained for magnetic field strength B in Example 24.1 (using the equation B=Ec ) are in fact teslas (T).
The magnitudes of the electric and magnetic fields in a velocity selector are 1.8105V/m and 0.080 T, respectively, (a) What speed must a proton have to pass through tire selector? (b) Also calculate the speeds required for an alpha-particle and a singly ionized SO atom to pass through the selector.