NEET Physics: Questions 326 - 330 of 2099

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Question number: 326

» Electrostatics » Electric Field Due to a Point Charge

MCQ▾

Question

Electric lines of force at negative point charge are

Choices

Choice (4) Response
a.

Radial, inward

b.

Circular, anticlockwise

c.

Radial, outward

d.

Circular, clockwise

Question number: 327

» Rotational Motion » Torque

MCQ▾

Question

An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min. What torque does it deliver?

Choices

Choice (4) Response
a.

350 N-m

b.

440 N-m

c.

628 N-m

d.

531 N-m

Question number: 328

» Electrostatics » Capacitors

MCQ▾

Question

Two dielectric slabs of constant K 1 and K 2 have been filled in between the plates of a capacitor as shown below. What will be the capacitance of the capacitor?

Capacitor - Two dielectric slabs of constant K1 and K2

Capacitor - Two Dielectric Slabs of Constant K1 and K2

Two dielectric slabs of constant K1 and K2 have been filled in between the plates of a capacitor

Choices

Choice (4) Response
a.

2ϵ0Ad(K1×K2K1+K2)

b.

4ϵ0Ad(K1+K2K1K2)

c.

2ϵ0Ade(K1+K2)

d.

2ϵ0Ad(K1+K2K1K2)

Question number: 329

» Electrostatics » Coulomb's Law

MCQ▾

Question

In the rectangle shown below, the two corners have charges q 1 = -5 μC and q 2 = +2.0 μC. Find the force acting on the q 2 due to q 1.

Rectangular image given having charge values

Rectangular Image Given Having Charge Values

In figure the rectangular having two charges at corners q1=-5 μC and q2 =+2.0 μC.

Choices

Choice (4) Response
a.

-60N

b.

-30N

c.

-20N

d.

-40N

Question number: 330

» Laws of Motion » Force and Inertia

MCQ▾

Question

A stone of mass 1 kg tied to a light inextensible string of length L = 10/3 m is whirling in a circular path of radius L in a vertical plane. If the ratio of the maximum tension in the string to the minimum tension in the suing is 4 and if g is taken to be 10m/sec2, the speed of the stone at the highest point of the circle is

Choices

Choice (4) Response
a.

10√3m/Sec

b.

10 m/sec

c.

20 m/sec

d.

5√2m/sec

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