NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics: Questions 723 - 726 of 5119

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Question 723

Question MCQ▾

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

Edit

Question 724

Question MCQ▾

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

Edit

Question 725

Question MCQ▾

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

Edit

Question 726

Question MCQ▾

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.

Edit