NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 587 - 590 of 2320

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Question number: 587

» Magnetic Effects of Current and Magnetism » Moving Coil Galvanometer

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MCQ▾

Question

In a moving coil galvanometer, the deflection of the coil θ is related to the electrical current i by the relation

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 588

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

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MCQ▾

Question

The straight long conductors AOB and COD are perpendicular to each other and carry current and . The magnitude of the magnetic induction at point P at a distance ‘a’ from the point O in a direction perpendicular to the plane ACBD is

Conductors AOB and COB explained above

Conductors AOB and COB Explained Above

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Choice (4)Response

a.

b.

c.

d.

Question number: 589

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

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Question

A closed coil consists of 500 turns on a rectangular frame of area 4.0 cm 2 and has a resistance of 50 ohm. The coil is kept with its plane perpendicular to a uniform magnetic field of 0.2 weber/meter 2. The amount of charge flowing through the coil if it is turned over (rotated through 180°) will be -

Choices

Choice (4)Response

a.

1.6 x 10 -19 C

b.

1.6 x 10 -9 C

c.

1.6 x 10 -3 C

d.

1.6 x 10 -2 C

Question number: 590

» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field

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MCQ▾

Question

A current of 2.0 amp is flowing through a wire of length 50 cm. If this wire be placed at an angle of 60° with the direction of a uniform magnetic field of 5.0 x 10 -4 N/Am the force on the wire will be,

Choices

Choice (4)Response

a.

b.

c.

d.

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