PHY102: TMA1 Question and answer

Question 1 : The SI Unit of electric charge is
A. hertz
B. joule
C. Newton
D. coulomb

Answer to question 1 is D. coulomb

 

Question 2 : Gauss’s law applies to any hypothetical closed surface called
A. lower point
B. Gaussian surface
C. Gaussor
D. free surface

Answer to question 2 is B. Gaussian surface

Question 3 : The relation between an electric charge and electric field is express by
A. Ohm’s law
B. Gausss law
C. Newton’s law
D. Coulomb’s law

Answer to question 3 is D. coulomb’s Law

 

Question 4 : Coulomb’s law applies to
A. solids
B. point charges
C. point masses
D. liquid bodies

Answer to question 4 is B. point Charge

Question 5 : Electric field is which type of physical quantity?
A. vector
B. None of these
C. scalar
D. charge

Answer to question 5 is A. Vector

Question 6 : what will happen to two glass rods after being rubbed with silk?
A. repel eachother
B. attract eachother
C. breaks
D. displace eachother

Answer to question 6 is A. repel each other

 

Question 7 : The direction of the electric field is opposite to that of the force if the charge is
A. negative
B. positive
C. neutral
D. large

Answer to question 7 is A. negative

 

Question 8 : Electric charge is quantized, occuring in only in
A. discrete amounts
B. None of these
C. continous amounts
D. few amounts

Answer to question 8 is A. Discrete amounts

 

Question 9 : The electric field is measured in
A. Newton
B. N/K
C. Newton per coulomb
D. coulomb

Answer to question 9 is C. newton per coulomb

 

Question 10 : In conservation of charge, the algebraic sum of the equal and opposite charges on the two bodies is
A. zero
B. 1C
C. converted
D. terminal

Answer to question 10 is A. zero

Question 11 : The fact that electric forces add vectorially is known as the
A. charge addition
B. principle of charge
C. coulomb’s law
D. superposition principle

Answer to question 11 is D. Superposition principle

Question 12 : The number of lines of force crossing any surface depends on the field strenght, the surface orientation of the
A. Charge
B. electric flux
C. voltage
D. surface

Answer to question 12 is B. electric flux

 

Question 13 : The process of charging two bodies by means of rubbing them together is called charging by
A. None of these
B. friction
C. electrons
D. lightning

Answer to question 13 is B. friction

 

Question 14 : The quantity of charge flowing per second through a conductor of 1A is known as
A. Total Amperes
B. coulomb
C. volt
D. watts

Answer to question 14 is B. coulomb

Question 15 : A region where an electric charge experiences a force is known as
A. magnetic field
B. charge field
C. force field
D. electric field

Answer to question 15 is D. Electric field

Question 16 : The unit of permitivity is
A. farad per metre
B. farad per coulomb
C. farad
D. farad per ampere

Answer to question 16 is A. farad per metre

Question 17 : which of the following is origin of the negative charge
A. nucleus
B. electron
C. proton
D. neutron

Answer to question 17 is B. electron

 

Question 18 : The smallest charge that is possible to obtain is that of
A. battery
B. electricity
C. neutron
D. proton and electron

Answer to question 18 is D. proton and electron

 

Question 19 : The electric flux is a
A. vector and scalar
B. scalar
C. None of these
D. vector

Answer to question 19 is D. vector

Question 20 : The number of lines of force crossing any closed surface is proportional to the the
A. electric flux
B. temperature
C. net charge
D. electric field

Answer to question 1 is D. electric field

PHY102: TMA3 QUESTION AND ANSWER