How are fossil fuels used to generate electrical energy? A. Heat from burning fuel spins magnets inside an electric motor. B. Heat from burning fuel creates steam that spins a turbine. C. Heat from burning fuel causes an electric motor to produce a current. D. Heat from burning fuel creates steam that turns a transformer
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Question
Updated 10/9/2014 2:32:28 PM
Original conversation
User: A coil of wire that is carrying a current and produces a magnetic field is A. a galvanometer. B. a solenoid. C. a magnetic domain. D. an electric motor.

User: How are fossil fuels used to generate electrical energy? A. Heat from burning fuel spins magnets inside an electric motor. B. Heat from burning fuel creates steam that spins a turbine. C. Heat from burning fuel causes an electric motor to produce a current. D. Heat from burning fuel creates steam that turns a transformer

Weegy: B. Heat from burning fuel creates steam that spins a turbine
Fanboy|Points 2821|

User: The output voltage and current of a transformer are determined by the A. number of turns in the primary and secondary coils. B. strength of the DC current in the primary coil. C. ferromagnetic material of the rings connecting the coils. D. direction of the current in the primary coil.

Weegy: The output voltage and current of a transformer are determined by the 1. number of turns in the primary and secondary coils.
vchutkan|Points 5871|

User: A transformer has a primary coil with 600 turns and a secondary coil with 300 turns. If the output voltage is 320 volts, what is the input voltage? A. 8 volts B. 150 volts C. 640 volts D. 600 volts

Weegy: The answer is C. 640 volts
bongche|Points 3864|

User: Which of the following statements is true about a current-carrying wire in a magnetic field? A. Reversing the current direction will cause the force deflecting the wire to be parallel to the magnetic field. B. Reversing the current direction will cause the force deflecting the wire to be perpendicular to the magnetic field but in the opposite direction. C. Reversing the current direction will cause the force deflecting the wire to be parallel to the velocity of the charge. D. Reversing the current direction will not affect the force deflecting the wire.

User: If the current in a wire is directed upward, what is the direction of the magnetic field produced by the current? A. counterclockwise in the horizontal plane B. clockwise in the horizontal plane C. in the same direction as the current D. in the opposite direction to the current

Weegy: If the current in a wire is directed upward,the direction of the magnetic field produced by the current is counterclockwise in the horizontal [ plane. ]
emdjay23|Points 2639|

User: If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

Weegy: The answer is B. 30 turns
bongche|Points 3864|

User: In an electric motor, periodically changing the direction of current in the electromagnet can cause the axle to spin because A. the electromagnet loses its magnetism. B. mechanical energy is converted to electric energy. C. the moving electrons push the electromagnet in the opposite direction. D. the magnetic field reverses direction.

Weegy: In an electric motor, periodically changing the direction of current in the electromagnet can cause the axle to spin because - D. the magnetic field reverses direction.
yumdrea|Points 2593|

User: Moving a magnet inside a coil of wire will induce a voltage in the coil. How can the voltage in the coil be increased? A. Move the magnet inside the coil of wire more slowly. B. Hold the magnet stationary. C. Move the coil of wire slowly, and keep the magnet stationary. D. Move the magnet inside the coil of wire more rapidly.

Weegy: The answer is D. The voltage in the coil be increased by moving the magnet inside the coil of wire more rapidly.
matahari|Points 2731|

User: If you break a bar magnet in half, each half A. contains one magnetic pole. B. becomes a bar magnet with two poles. C. becomes unmagnetized. D. is only temporarily magnetized.

Karonher|Points 150|

User: What is the name of the area surrounding Earth that is influenced by Earth’s magnetic field? A. magnetosphere B. atmosphere C. magnetic domain D. magnetic declination

Weegy: What is the name of the area surrounding Earth that is influenced by Earth?s magnetic field? B. atmosphere
colossus09|Points 112|

Question
Updated 10/9/2014 2:32:28 PM
Rating
8
A coil of wire that is carrying a current and produces a magnetic field is: A Solenoid.

Confirmed by sujaysen [10/9/2014 2:35:31 PM]

Questions asked by the same visitor
Under the Napoleonic Code A. most Enlightenment principles were abandoned. B. men regained complete authority over their wives. C. many aspects of feudalism were restored. D. the practice of religion was banned.
Question
Updated 12/17/2014 3:59:52 PM
Under the Napoleonic Code: men regained complete authority over their wives.

Confirmed by jeifunk [12/17/2014 4:09:56 PM]
According to laissez-faire economists, the cure for poverty was A. welfare. B. popular reform movements. C. an unrestricted free market. D. laws requiring factories to increase wages.
Question
Updated 10/1/2016 11:33:10 PM
According to laissez-faire economists, the cure for poverty was an unrestricted free market.
Confirmed by jeifunk [10/2/2016 10:00:11 AM]
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