A current in a wire points into the page as shown at the right. In which direction is the magnetic field at point A (choose below)? •A •B (a) (b) (c) (d) (e) None of these.

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Q: How is the direction of a magnetic field at a point determined?

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A: The direction of velocity is given : Ve→ towards right ,

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Q: A current carrying conductor is placed between the poles of a magnet. If the magnetic field,…

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Q: a temporary magnet?

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Q: How is the direction of a magnetic field at a point determined?

A: Solution:-Given How is the direction of a magnetic field at a point determined?

Q: Why is it not a good idea to call magnetic field lines “magnetic lines of force”?

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Q: Suppose magnetic field in negative x-axis and a force in negaiNe z-axis. Draw paths of electrons and…

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A: Solution:

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A: Using Fleming's Left-hand rule, the Forefinger indicates the direction of the magnetic field, and…

Q: Find the magnetic field expression at point P for the current in the figure. (Point P is at the…

A: I is the current R is the radius of the semicircle The straight conducting wire dont have a…

Q: A positive charge moves in a uniform magnetic field as shown. Which choice best represents the…

A: Here, the direction of magnetic field and direction of charge is given in the diagram. We have to…

Q: Picture a negative charge moving leftward on your computer screen,  with some velocity. A magnetic…

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Q: The magnetic field due to the top wire points in which direction?

A: Thumb rules state that if thumb of the right hand points along direction of current, then the…

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A:

Q: The force on the rectangular loop of wire in the magnetic field in the figure below can be used to…

A: Question a and b are same so solution is same for a and b.

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A: The Right hand rule is used to determine the direction of the magnetic field-   Thumb: Velocity of…

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Q: Which of the following is equivalent to the units of a magnetic field?     A m/N     N A/m…

A: N/(Am)

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A: A magnet attracts metallic objects

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A: Recall FB→=q(V→×B→)as charge is negative so direction of force will be oposite to V→×B→

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Q: What is the direction of the magnetic field at point P?

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Q: Consider the charge -q moving in the direction shown. -q a) What is the direction of the magnetic…

A: (a) Current in the wire is moving upwards. Applying Right Hand Thumb rule, direction of magnetic…

Q: gram below represent: nd a cylinder). Which c e coils?

A:

Q: As shown in the figure . A wire is carrying a current .The amount and direction of the magnetic…

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Q: The arrangement of wires shown below, are parallel to each other and carry currents of 10 amp and…

A: Given: The current in the upper wire is 10 A in the right direction. The current in the lower wire…

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Q: What is the magnetic field at the position of the dot in the figure? Give youranswer as a vector.

A: Approach to solving the question: Detailed explanation: Examples: Key references:

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A: A horizontal wire carries a current straight toward you.

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A: When a bar magnet falls through the coil, then from Faraday's law emf will generate, and This emf…

Q: Constants Periodic Table Part of a single rectangular loop of wire with dimensions shown in the…

A:

Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.