Two coaxial solenoids of different radii carry current I in the same direction. Let F 1 → be the magnetic force on the inner solenoid due to the outer one and F 2 → be the magnetic force on the outer solenoid due to the inner one. Then:

F 1 → is radially outwards and F 2 → = 0

F 1 → is radially inwards and F 2 → is radially outwards

F 1 → is radially inwards and F 2 → = 0

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Uniform electric and magnetic fields are produced in the same direction. An electron moves in such a way thạt, its velocity remains in the direction of electric field. The electron will

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Important Questions on Magnetic Effect of Current

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 99

The distance between the plates of a parallel plate condenser is $4 mm$ and potential difference between them is $200 V .$ The condenser is placed in a magnetic field $B .$ An electron is projected vertically upwards parallel to the plates with a velocity of $10^{6} m / s .$ The electron passes undeviated through the space between the plates. The magnitude and direction of magnetic field $B$ will be -

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 100

A beam of protons enters a uniform magnetic field of

0.3 T

with velocity of

4 \times 10^{5} m s^{- 1}

in a direction making an angle of

60 °

with the direction of magnetic field. The path of motion of the particle will be

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 101

A beam of protons enters a uniform magnetic field of

0.3 T

with velocity of

4 \times 10^{5} m s^{- 1}

in a direction making an angle of

60 °

with the direction of the magnetic field, the radius of the path of the particle will be

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 102

A beam of protons enters a uniform magnetic field of

0.3 T

with velocity of

4 \times 10^{5} m s^{- 1}

in a direction making an angle of

60 °

with the direction of magnetic field, the pitch of the helix will be

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 103

In a certain region of space electric field

\vec{E}

and magnetic field

\vec{B}

are perpendicular to each other and an electron enters in region perpendicular to the direction of

\vec{B}

and

\vec{E}

both and moves undeflected, then velocity of electron is

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 104

A charged particle with velocity

2 \times 10^{3} {ms}^{- 1}

passed undeflected through electric and perpendicular magnetic field. Magnetic field is

1.5 .

Tesla. Find electric field intensity.

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 105

A particle moves in a region having a uniform magnetic field and a parallel, uniform electric field. At some instant, the velocity of the particle is perpendicular to the field direction. The path of the particle will be

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-1>Q 106

In a mass spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potential

V

and then made to describe semicircular path of radius

R

using a magnetic field

B

. If

V

and

B

are kept constant, the ratio

(\frac{charge on the ion}{mass of the ion})

will be proportional to

Uniform electric and magnetic fields are produced in the same direction. An electron moves in such a way thạt, its velocity remains in the direction of electric field. The electron will

Important Questions on Magnetic Effect of Current

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