NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 706 - 710 of 2320

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Question number: 706

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

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MCQ▾

Question

A step up transformer has transformation ratio 5: 3. What is voltage in secondary if voltage in primary is 60 V.

Choices

Choice (4)Response

a.

100 V

b.

60 V

c.

180 V

d.

20 V

Question number: 707

» Kinematics » Uniformly Accelerated Motion

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MCQ▾

Question

A force produces an acceleration of 5 m/s 2 in a body and same force an acceleration of 15 m/s 2 in another body. The acceleration produced by the same force when applied to the combination of two bodies will be –

Choices

Choice (4)Response

a.

20 m/s 2

b.

0.667 m/s 2

c.

10 m/s 2

d.

3.75 m/s 2

Question number: 708

» Experimental Skills » Screw Gauge

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MCQ▾

Question

A T shaped object, dimensions shown in the figure, a1 lying on a smooth floor. A force ‘F is applied at the poi: P parallel to AB, such that the object has only the translational motion without rotation. Find the location o2 P with respect to C

Object on smooth floor in shape of T

Object on Smooth Floor in Shape of T

Choices

Choice (4)Response

a.

b.

c.

I

d.

Question number: 709

» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance

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MCQ▾

Question

Three inductances are connected as shown below. Assuming no coupling, the resultant inductance will be- (L 1 = 0.75 H, L 2 = L 3 = 0.5 H)

Three inductances connected in circuit

Three Inductances Connected in Circuit

Choices

Choice (4)Response

a.

0.25 H

b.

0.75 H

c.

0.01 H

d.

1 H

Question number: 710

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

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MCQ▾

Question

The current in a coil varies with respect to time t as I = 3t 2 + 2t. If the inductance of coil be 10 mH, the value of induced e. m. f. at t = 2 sec will be,

Choices

Choice (4)Response

a.

0.12 V

b.

0.14 V

c.

0.11 V

d.

0.13 V

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