Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 28

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A rod of length $l$ , carrying current $i$ , is kept in uniform magnetic field of magnitude $B$ as shown in the figure. What is the force applied by the magnetic field on the rod?

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Important Questions on Magnetic Effect of Electric Current

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 29

What is the force acting on a $I A$ current-carrying circular loop of radius $R$ kept in a uniform magnetic field $B$ which is applied perpendicular to the loop?

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 30

A straight conductor carrying a current does not experience a force when it is,

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 31

A conductor of length

1 m

and carrying current of

1 A

is placed at an angle

45 °

to the magnetic field of

1 oersted

. The force acting on conductor is,

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 32

The maximum force acting on a straight conductor of length

15 cm

, placed in a magnetic field of induction

5 \times 10^{- 5} N A m^{- 1}

is

3 \times 10^{- 4} N

. Then, the current flowing in conductor is,

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 33

For a given conductor the directions of current and magnetic induction are shown in the following figure. Which of the following represents direction of force?

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 34

A current carrying straight wire is kept along the axis of a circular loop carrying a current. The straight wire

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 35

A current of

5 A

is flowing in a wire of length

1.5 m

. A force of

7.5 N

acts on it when it is placed in a uniform magnetic field of

2 T

. The angle between the magnetic field and the direction of the current is,

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Physics Crash Course MHT-CET>Chapter 16 - Magnetic Effect of Electric Current>Exercise 1>Q 36

The dimensions of magnetic induction are