Homework Answers
7). If the magnet flux linked with the coil changes then emf or current can be induced in the coil.
Hence correct option is
yes, but if only field is changing .
8). Into or out of the screen .
This is in accordance with force on charge is cross product of velocity and magnetic field multiplied with magnitude of charge.
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Question 7 8.75 pts Can a magnetic field cause a current in a coil of wire?...
Question 3 Can a magnetic field cause a current in a coil of wire? o no,...
Question 3 Can a magnetic field cause a current in a coil of wire? o no, magnetism and electrostatics are not related yes, but only if the field is changing O yes, any magnetic field can create a current O no, it is currents that make magnetic fields
no, it is currents that make magnetic fields Question 4 8.75 pt Ohm's law states V...
no, it is currents that make magnetic fields Question 4 8.75 pt Ohm's law states V = IR, Voltage = Current x Resistance. If a toaster has a resistance of 60 ohms and is plugged into a 120 volt outlet, how much current will it "draw"? O 5 Amps 2 Amps 0.5 Amps O 1 Amp 8.75 pts Question 5 ini dianinued on a charged particle was moving left to right
1 pts Question 1 Select all of the following that are true about magnets and magnetic...
1 pts Question 1 Select all of the following that are true about magnets and magnetic fields. the source of magnetic fields is net motion of charged particles the South pole of a bar magnet can be separated from the North pole to make two monopoles like magnetic poles IS and S, or N and N) repel and opposites attract IN and S) □ magnetic field lines always form closed loops magnetic fields are scalars a straight wire with current...
a) A wire carrying a current I is perpendicular to a magnetic field of strength B....
a) A wire carrying a current I is perpendicular to a magnetic field of strength B. Assuming a fixed length of wire, which of the following changes will result in decreasing the force on the wire by a factor of two? Select all correct answers - Decreas the current in th e wire to I/2 - Decrease the field strength to B/2 - Decrease the angle from 90 to 45 degrees - Decrease the angle form 90 to 30 degrees...
Explain how the right hand rule will predict the direction of the magnetic field for an electric current running through a coil of wire
3. Explain how the right hand rule will predict the direction of the magnetic field for an electric current running through a coil of wire: 4. Explain how the right hand rule works for an external magnetic field that is changing inside a coil of wire: 5. In the situation below, the bar magnet is moving to the right. What will be the direction of the induced current in the solenoid? (Either draw arrows, or describe like up in front, down in...
Question 12 A conventional current flows through a wire in a magnetic field (as shown in...
Question 12 A conventional current flows through a wire in a magnetic field (as shown in the diagram below). What is the direction of the magnetic force on the wire? x x x x x X X X X X Metal strip to the right to the left towards the top of the page/screen towards the bottom of the page/screen
Along straight wire cames a current directed upwards, what is the direction of the magnetic field...
Along straight wire cames a current directed upwards, what is the direction of the magnetic field to the right of the wire? toward the right side of the screen toward the left of the screen toward the top of the screen toward the bottom of the screen to screen out of scroon Question 18 A long straight wire carries a current directed downwards, what is the direction of the magnetic field to the left of the wire? toward the right...
D Question 6 5 pts A horizontal length of current-carrying wire is suspended from two identical...
D Question 6 5 pts A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 4T and is directed out of the screen of the figure. The length of the wire is 5 cm and its mass mis 10g. What current will produce a magnetic force on the wire...
Question 6 5 pts A horizontal length of current-carrying wire is suspended from two identical flexible...
Question 6 5 pts A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 4T and is directed out of the screen of the figure. The length of the wire is 5 cm and its mass mis 10 g. What current will produce a magnetic force on the wire...
Question 3 8.75 pts A moving charge or current can produce a magnetic field. True O...
Question 3 8.75 pts A moving charge or current can produce a magnetic field. True O False D Question 4 8.75 pts A cell phone wrapped in metal foil is observed to not be able to get a signal and ring when called. Which concept that best explains why this happens? Faraday's law Ohm's law Watt's law Coulomb's law
Question 3 Can a magnetic field cause a current in a coil of wire? o no, magnetism and electrostatics are not related yes, but only if the field is changing O yes, any magnetic field can create a current O no, it is currents that make magnetic fields
no, it is currents that make magnetic fields Question 4 8.75 pt Ohm's law states V = IR, Voltage = Current x Resistance. If a toaster has a resistance of 60 ohms and is plugged into a 120 volt outlet, how much current will it "draw"? O 5 Amps 2 Amps 0.5 Amps O 1 Amp 8.75 pts Question 5 ini dianinued on a charged particle was moving left to right
1 pts Question 1 Select all of the following that are true about magnets and magnetic fields. the source of magnetic fields is net motion of charged particles the South pole of a bar magnet can be separated from the North pole to make two monopoles like magnetic poles IS and S, or N and N) repel and opposites attract IN and S) □ magnetic field lines always form closed loops magnetic fields are scalars a straight wire with current...
Question 12 A conventional current flows through a wire in a magnetic field (as shown in the diagram below). What is the direction of the magnetic force on the wire? x x x x x X X X X X Metal strip to the right to the left towards the top of the page/screen towards the bottom of the page/screen
Along straight wire cames a current directed upwards, what is the direction of the magnetic field to the right of the wire? toward the right side of the screen toward the left of the screen toward the top of the screen toward the bottom of the screen to screen out of scroon Question 18 A long straight wire carries a current directed downwards, what is the direction of the magnetic field to the left of the wire? toward the right...
D Question 6 5 pts A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 4T and is directed out of the screen of the figure. The length of the wire is 5 cm and its mass mis 10g. What current will produce a magnetic force on the wire...
Question 6 5 pts A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 4T and is directed out of the screen of the figure. The length of the wire is 5 cm and its mass mis 10 g. What current will produce a magnetic force on the wire...
Question 3 8.75 pts A moving charge or current can produce a magnetic field. True O False D Question 4 8.75 pts A cell phone wrapped in metal foil is observed to not be able to get a signal and ring when called. Which concept that best explains why this happens? Faraday's law Ohm's law Watt's law Coulomb's law
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