ECAT Pre Computer Science Chapter 12 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 12 Electrostatics

Try The MCQ's Test For ECAT Physics Chapter 12 Electrostatics

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ECAT Physics Chapter 12 Electrostatics

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Question # 1

A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?

Question # 2

The relation between charge 'Q' and current 'I' is given by

Question # 3

At any point on the right bisector of the line joining two equal and opposite charges

Question # 4

An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be

Question # 5

The resistance of a conductor does not depend on its

Question # 6

Electric potential of earth is taken to be zero because the earth is good

Question # 7

Electric flux is defined by the relation

Question # 8

Magnetic effect at a point caused due to flow a current depend upon the

Question # 9

The current through a metallic conductor is due to the motion of

Question # 10

If the distance of separation between two chares is increased, the electrical potential energy of the system will

Question # 11

Equal charges are given to two spheres of different radii. The potential will

Question # 12

The electrode connected with the positive terminal of the current source is called

Question # 13

One coulomb per second is equal to

Question # 14

Which one of the following causes production of heat when current is set up in a wire?

Question # 15

The SI unit of conductivity is

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 The electric field due to an infinite long thin wire at a distance R varies as
A. 1/R
B. 1/R2
C. R
D. R2
2 Coulomb force, when any material medium is placed between two charges
A. Increases
B. Decreases
C. Remain unchanged
D. None of these
3 The unit of conductance is
A. ohm
B. meter
C. mho
D. ohm-meter
4 Which one of the following is the unit of electric field intensity
A. JC-1
B. Vm-1
C. Cm-1
D. CJ-1
5 The electric flux from a closed surface
A. Is independent of the shape of the surface
B. Depends on the charge enclosed by the surface
C. Both a and b
D. None of the above
6 Electron volt is the unit of.
A. Potential difference
B. Energy
C. Resistance
D. Capacitance
7 A 10 F capacitor is charged to a potential difference of 50 V and is connected to another uncharged capacitor in parallel. Now the common potential difference becomes 20 volt.The capacitance of second capacitor is
A. 10μF
B. 20μF
C. 30μF
D. 15μF
8 The SI unit of permitivity is
A. Nm2C2
B. N-1m-2C2
C. NmC2
D. Nm2C-1
9 The electric lines of force are
A. Imaginary
B. Physically existing everywhere
C. Physically existing near the charge
D. All of the above
10 In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be
A. 2 R
B. R/4
C. R/2
D. R

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