NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 725 - 729 of 2184

Access detailed explanations (illustrated with images and videos) to 2184 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 550.00 or

How to register?

Question number: 725

» Electromagnetic Induction & Alternating Currents » Faraday's Law

Edit
MCQ▾

Question

A rectangular coil of size 10 cm x 20 cm has 60 turns. It is rotating about one of its diagonals in magnetic field 0.5 Wb/m 2 with a rate of 1800 revolution per minute. The induced e. m. f. in the coil can be,

(1) 111 V (2) 112 V

(3) 113 V (4) 114 V

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 2 are correct

d.

1 and 3 are correct

Question number: 726

» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC

Edit
MCQ▾

Question

An alternating voltage is connected to a 1 µF capacitor through an ac ammeter. The reading of the ammeter will be

Choices

Choice (4) Response

a.

10 mA

b.

20 mA

c.

80 mA

d.

40 mA

Question number: 727

» Experimental Skills » Screw Gauge

Edit
MCQ▾

Question

Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when centers of three balls are joined. The center of the mass of system is located at

Choices

Choice (4) Response

a.

Centre of one of the balls

b.

Point of intersection of the medians

c.

Line joining centers of any two balls

d.

Horizontal surface

Question number: 728

» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC

Edit
MCQ▾

Question

The frequency of an alternating voltage is 50 cycles/sec and its amplitude is 120 V. Then the r. m. s value of voltage is

Choices

Choice (4) Response

a.

84.8V

b.

101.3V

c.

56.5V

d.

70.7V

Question number: 729

» Experimental Skills » Screw Gauge

Edit
MCQ▾

Question

Four particles of masses m, 2m, 3m and 4m are arranged at the corners of a parallelogram with each side equal to a and one of the angle between two adjacent sides is 60°. The parallelogram lies in the x-y plane with mass-m at the origin and 4m on the x-axis. The center of mass of the arrangement will be located at

Choices

Choice (4) Response

a.

b.

c.

d.