Explanation Introduction: Direction of magnetic field due to current carrying wire is given by right hand curl rule. Right hand rule says that extend your right-hand thumb in the direction of current then direction of curl of your four fingers of right hand gives the direction of magnetic field. Magnetic force ( F → m ) is given by F → m = = q ( V → × B → ) Hence direction of magnetic field is given by vector product. (a)For a: Direction of V → is i ∧ Direction of B → is K ∧ So direction of F → m is given by the direction of q ( V → × B → ) Direction of F → m is given by ( i ∧ × K ∧ ) = − J ∧ Hence magnetic field is in − V e y direction. (b)For b Direction of V → is i ∧ Direction of B → is K ∧ So direction of F → m is given by − V e of direction of direction of ( V → × B → ) . Direction of F → m = direction of − ( V → × B → ) = direction − ( J ∧ × K ∧ ) = − i ∧ F → m Is acting towards − V e x-axis as shown in figure. (c)For C: Direction of V → is − i ∧ Direction of B → is − K ∧ So direction of F → m is given by direction of q ( V → × B → ) ...

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Chapter 20, Problem 9Q

To determine

The direct on of the magnetic force due to the magnetic field produced

by the wire for each particle.

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Chapter 20, Problem 8Q

Chapter 20, Problem 10Q

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