Tamil Nadu (English Medium) Plus 2 Biology Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in


Zoology
Physics
Chemistry
Botany
Mathematics

Back to home

Start Practice

Question-1
The work done in carrying a charge Q once round the circle of radius r with charge Q at the centre of the circle is

(A)	(B)
(C) zero	(D)

Question-2 The study of the effects associated with electric charges at rest is called

(A) electromagnetism	(B)electrostatics
(C)magnetostatics	(D)none of these

Question-3 A large solid sphere with uniformly distributed positive charge has a smooth narrow tunnel through its centre. A small particle with negative charge, initially at rest far from the sphere, approaches it along the line of tunnel, reaches its surface with a speed v, and passes through the tunnel. Its speed at the centre of the sphere will be

(A) 0	(B)v
(C)	(D)

Question-4
Two spheres of radii r₁ and r₂ are charged to the same potential. If s₁ and s₂ are surface densities of charges on the two, then ratio is

(A)	(B)
(C)	(D)

Question-5 Capacitance (in F) of a spherical conductor with radius 1 m is

(A) 1.1 × 10^-10	(B)10^-6
(C)9 × 10^-6	(D)10^-3

Question-6 Two identical metal balls with charges +2Q and -Q are separated by some distance, and exert a force F on each other. They are joined by a conducting wire, which is then removed. The force between them will now be

(A) F	(B)F/2
(C)F/4	(D)F/8

Question-7
Electric potential of earth is taken to be zero because earth is a good

(A) dielectric	(B)semiconductor
(C)insulator	(D)conductor

Question-8 On moving a charge of 20 coluomb by 2cm, 2 J of work is done, then the potential difference between the points is

(A) 0.1 V	(B)8 V
(C)2 V	(D)0.5 V

Question-9
Two equally charged small balls A and B, placed at a fixed distance experience a force F. A smilar uncharged ball C after touching one of them is placed at a middle point between the two balls. The force experienced by ball A, is

(A)	(B)
(C) 2F	(D) 4F

Question-10
The electric field required to just support a water droplet of mass 10^-5g, which has a charge of 10^-13_C is

(A) 10⁷ V m^-1	(B) 9.8 × 10³ V m^-1
(C) 10⁶ V m^-1	(D) 9.8 × 10⁵V m^-1

Click here to see your answersheet and detailed track records.

Plus 2 Biology Science

Tamil Nadu (English Medium)

Practice in Related Chapters
Electrostatics
Atomic Physics
Current Electricity
Electromagnetic Induction and Alternating Current
Electromagnetic Waves And Wave Optics
Dual Nature of Radiation and Matter - Relativity
Semiconductor Devices and their Applications
Nuclear Physics
Effects of Electric Current

CONTENTS

Back to home

Start Practice

Practice in Related Chapters