A proton of mass 1 . 67 × 10 - 27 kg and charge 1 . 6 × 10 - 19 C is projected with a speed of 2 × 10 6 m s - 1 at an angle of 60 ° to the X -axis. If a uniform magnetic field of 0 . 104 Tesla is applied along Y - a x i s , the path of proton is-

a helix of radius = 0 . 1 m and time period 2 π × 10 - 7 s

a circle of radius = 0 . 2 m and time period π × 10 - 7 s

a circle of radius = 0 . 1 m and time period 2 π × 10 - 7 s

a helix of radius = 0 . 2 m and time period 4 π × 10 - 7 s

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In accordance with Ampere's law of force the direction of force $\vec{F}$ , magnetic induction $\vec{B}$ and the current element $I d \vec{L}$ are best represented by:-

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Important Questions on Magnetic Effect of Current

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 138

An elastic circular wire of length $l$ carries a current I₀. It is placed in a uniform magnetic field $\vec{B}$ (out of paper) such that its plane is perpendicular to the direction of $\vec{B}$ . The wire will experiences :-

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 139

A and B are two wires carrying a current I in the same direction. x and y are two electron beams moving in the same direction. There will be :-

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 140

The magnetic flux through a coreless solenoid o; carrying current I is 5 × 10^–6Wb. The length of the solenoid is 25 cm, its magnetic moment is equal to :-

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 141

In a mass spectrograph O⁺⁺, C⁺, He⁺⁺and H⁺ are projected on a photographic plate with same velocity in uniform magnetic field then which will strike the plate farthest :-

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 143

A proton of mass

1.67 \times 10^{- 27} kg

and charge

1.6 \times 10^{- 19} C

is projected with a speed of

2 \times 10^{6} m s^{- 1}

at an angle of

60 °

to the

X

-axis. If a uniform magnetic field of

0.104

Tesla is applied along

Y - a x i s,

the path of proton is-

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 145

Two concentric coils each of radius equal to 2

π

cm. are placed at right angles to each other. The currets 3 A and 4 A are flowing in each coil respectively. The magnetic induction in weber/m² at the centre of the coils will be :-

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 146

A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected along the direction of the fields with a certain velocity then :-

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Beta Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise (Assertion & Reason)>Q 147

An electron moves in a circular orbit with a uniform speed

v .

It produces a magnetic field

B

at the centre of the circle. The radius of the circle is proportional to:-

In accordance with Ampere's law of force the direction of force F→, magnetic induction B→ and the current element I dL→ are best represented by:-

Important Questions on Magnetic Effect of Current

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In accordance with Ampere's law of force the direction of force $\vec{F}$ , magnetic induction $\vec{B}$ and the current element $I d \vec{L}$ are best represented by:-