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Physics Exam  >  Physics Tests  >  Topic wise Tests for IIT JAM Physics  >  Work And Energy In Electrostatics System MCQ - Physics MCQ

Work And Energy In Electrostatics System MCQ - Physics MCQ


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10 Questions MCQ Test Topic wise Tests for IIT JAM Physics - Work And Energy In Electrostatics System MCQ

Work And Energy In Electrostatics System MCQ for Physics 2024 is part of Topic wise Tests for IIT JAM Physics preparation. The Work And Energy In Electrostatics System MCQ questions and answers have been prepared according to the Physics exam syllabus.The Work And Energy In Electrostatics System MCQ MCQs are made for Physics 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Work And Energy In Electrostatics System MCQ below.
Solutions of Work And Energy In Electrostatics System MCQ questions in English are available as part of our Topic wise Tests for IIT JAM Physics for Physics & Work And Energy In Electrostatics System MCQ solutions in Hindi for Topic wise Tests for IIT JAM Physics course. Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free. Attempt Work And Energy In Electrostatics System MCQ | 10 questions in 30 minutes | Mock test for Physics preparation | Free important questions MCQ to study Topic wise Tests for IIT JAM Physics for Physics Exam | Download free PDF with solutions
Work And Energy In Electrostatics System MCQ - Question 1
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When the separation between two charges is increased, the electric potential energy of the charges

Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 1

The correct answer is: may increase or decrease

Work And Energy In Electrostatics System MCQ - Question 2
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Three particles, each having a charge of 10µC are placed at the corners of an equilateral triangle of side 10 cm. The electrostatic potential energy of the system is 

Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 2



The correct answer is: 27 J

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Work And Energy In Electrostatics System MCQ - Question 3
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If E is the electric field intensity of an electrostatic field then the electrostatic energy density is proportional to.

Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 3



The correct answer is: E2

Work And Energy In Electrostatics System MCQ - Question 4
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A point charge q is surrounded by six identical charges at distance r shown in figure. How much work is done by force of electrostatic repulsion, when the point charge at the centre is removed to infinity?
Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 4

Work done in electrostatic system = change in electrostatic energy,


The correct answer is: 

Work And Energy In Electrostatics System MCQ - Question 5
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If a positive charge is shifted from a low-potential region to a high potential region. The electric potential energy.
Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 5

The correct answer is: increases

Work And Energy In Electrostatics System MCQ - Question 6
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How much kinetic energy will be gained by an \alpha  particle in going from a point at 70 V to another point at 50 V?
Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 6




The correct answer is: 40 eV

Work And Energy In Electrostatics System MCQ - Question 7
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A charge Q is uniformly distributed over the surface of a spherical shell of radius R. The electrostatic energy is directly proportional to :
Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 7

Electric field is given by



The correct answer is:  

Work And Energy In Electrostatics System MCQ - Question 8
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Two conducting sphere of radii R1 and R2 are charged with charges Q1 and Q2 respectively. On bringing them in contact there is.
Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 8

In contact V1 = V2
​Q1/R1 = Q2/R2
But if Q1/R1 ≠ Q2/R2
Q1R2 ≠ Q2R1
E is always decreasing if Q1R2 ≠ Q2R1

Work And Energy In Electrostatics System MCQ - Question 9
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An ion with charge +q is in a region of uniform electric field of magnitude E. The charge is moved a distance d in the direction of field. Which of the following is true?
Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 9

Electric force,  F = qE               
Work done = W = F.d = qEd.
But the change is electrostatic energy = –W
So potential energy decreased.

The correct answer is: The electric potential energy of the ion decreased by the amount qEd.

Work And Energy In Electrostatics System MCQ - Question 10
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A capacitor is charged to battery potential V in a R–C circuit. The ratio of the energy supplied by the battery and that stored in the capacitor is :
Detailed Solution for Work And Energy In Electrostatics System MCQ - Question 10

When a capacitor is connected to a battery. Then charge on the capacitor after a long time is q = CV
The work done by the battery or energy supplied by battery
= charge × voltage
= CV × V = CV2
Now, electrostatic energy in capacitor 

The correct answer is: 2

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Work And Energy In Electrostatics System MCQ

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