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The sum of all electromagnetic forces between different partic
Concepts of Physics by H. C. Verma
Concepts of Physics

Class 11

HC Verma Part I

Author:
H. C. Verma
Subject:
Physics
1

Chapter 1: Introduction to Physics

35 questions

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2

Chapter 2: Physics and Mathematics

60 questions

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3

Chapter 3: Rest and Motion: Kinematics

88 questions

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4

Chapter 4: The Forces

33 questions

Q1
Let E, G and N represent the magnitudes of electromagnetic gravitational and nuclear forces between two electrons at a given separation. Then:
Q2
The sum of all electromagnetic forces between different particles of a system of charged particles is zero 
Q3
A 60 kg man pushes a 40 kg man by a force of 60 N. The 40 kg man has pushed the other man with a force of?
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5

Chapter 5: Newton's Law of Motion

82 questions

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6

Chapter 6: Friction

57 questions

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7

Chapter 7: Circular Motion

63 questions

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8

Chapter 8: Work and Energy

101 questions

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9

Chapter 9: Centre of Mass, Linear momentum Collision

119 questions

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10

Chapter 10: Rotational Mechanics

149 questions

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11

Chapter 11: Gravitation

80 questions

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12

Chapter 12: Simple Harmonic Motion

111 questions

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13

Chapter 13: Fluid Mechanics

81 questions

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14

Chapter 14: Some Mechanical Properties of Matter

87 questions

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15

Chapter 15: Wave Motion and Waves on a String

96 questions

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16

Chapter 16: Sound Waves

118 questions

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17

Chapter 17: Light Waves

79 questions

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18

Chapter 18: Geometrical optics

123 questions

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19

Chapter 19: Optical Instruments

52 questions

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20

Chapter 20: Dispersion and Spectra

27 questions

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21

Chapter 21: Speed of Light

14 questions

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22

Chapter 22: Photometry

38 questions

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Question
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Solving time: 1 mins

The sum of all electromagnetic forces between different particles of a system of charged particles is zero 

A
Only if all the particles are positively charged

B
Only if all the particles are negatively charged

C
Only if half the particles are positively charged and half are negatively charged

D
Irrespective of the signs of the charges

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Updated on: Jun 20, 2022

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Book:

Concepts of Physics (HC Verma Part I)

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Text SolutionText solutionverified iconVerified

(d) Irrespective of the signs of the charges.

The sum of all electromagnetic forces between different particles of a system of charged particles is zero irrespective of the sign of the charges, because electromagnetic force is a vector quantity that depends upon the direction. So, we consider the directions while adding vector quantities.
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Practice questions from Concepts of Physics (HC Verma Part I)

Question 1
Medium
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Views: 5,456

The figure shows a heavy block kept on a frictionless surface and being pulled by two ropes of equal mass m. At t = 0, the force on the left rope is withdrawn but the force on the right end continues to act. Let F  and F be the magnitudes of the forces exerted by right rope and the left rope on the block, respectively:
  1. F = F = F for t < 0
  2. F = F = F + mg for t < 0
  3. F = F, F = F for t > 0
  4. < F, F = F for t > 0
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Topic:

Laws of motion

Book

Book:

Concepts of Physics (HC Verma Part I)

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Question 2
Medium
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Both the springs shown in the following figure are unstretched. If the block is displaced by a distance x and released, what will be the initial acceleration?
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Laws of motion

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Book:

Concepts of Physics (HC Verma Part I)

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Question 3
Easy
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Consider a vehicle going on a horizontal road towards east. Neglect any force by the air. The frictional force on the vehicle by the road.
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  2. Is zero if the vehicle is moving with a uniform velocity
  3. Must be towards east
  4. Must be towards west.
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Topic:

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Book:

Concepts of Physics (HC Verma Part I)

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Question 4
Hard
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The friction coefficient between the two blocks shown in the following figure is μ but the floor is smooth. (a) What maximum horizontal force F can be applied without disturbing the equilibrium of the system? (b) Suppose the horizontal force applied is double of that found in part (a). Find the accelerations of the two masses.
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Topic:

Laws of motion

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Book:

Concepts of Physics (HC Verma Part I)

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Question Text
The sum of all electromagnetic forces between different particles of a system of charged particles is zero 
Updated OnJun 20, 2022
TopicLaws of motion
SubjectPhysics
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes551
Avg. Video Duration1 min