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JEE Main Electric Charges and Fields — practice questions — page 4

Explore 141 free Electric Charges and Fields questions in JEE Main Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Electric Charges and Fields questions and exercises with answers

Showing questions 91–120 of 141.

Charge or massRead the answer and worked solution →Fill the gaps on electric chargeRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →A physicist records a charge measurement in SI units, named after a French physicist. That unit is the:Read the answer and worked solution →Experiments established that charge comes in how many types?Read the answer and worked solution →If a charge vanished in one place and appeared far away, one law would still hold. That law is the conservation of:Read the answer and worked solution →Charge cannot take just any value, but comes in whole multiples of a basic amount. Charge is therefore said to be:Read the answer and worked solution →Coulomb's law says the force between two charges falls off with the square of the distance. That relationship is called:Read the answer and worked solution →That same force grows in proportion to the net charge on each object. That dependence is:Read the answer and worked solution →Forces from several charges on one object can simply be added as vectors. That rule is the principle of:Read the answer and worked solution →Materials that do not let electric charge move away through them are called:Read the answer and worked solution →A charged rod is brought near a metal sphere without touching, and the sphere's charges rearrange. That process is charging by:Read the answer and worked solution →In an insulator the same approach shifts the electron distribution slightly. That effect is called inducing:Read the answer and worked solution →Once that shift happens, unlike charges sit closer than like charges, so the object feels a net:Read the answer and worked solution →Rather than describing the force on one particular test charge, physicists define a quantity independent of it. That quantity is the electric:Read the answer and worked solution →Drawings that let us picture how charge alters the surrounding space are electric field:Read the answer and worked solution →A student draws two of those lines crossing. That drawing must be wrong, because field lines never:Read the answer and worked solution →Where those lines are packed more densely, the field is:Read the answer and worked solution →Two equal and opposite charges separated by a small distance form a dipole, characterised by its dipole:Read the answer and worked solution →Placed in a uniform field, such a dipole experiences a turning effect that changes its angular velocity. That effect is a:Read the answer and worked solution →If the two ends of a dipole can be pulled apart, induction can create charged objects without any:Read the answer and worked solution →A test charge or a source charge moves, and as a result the force between them:Read the answer and worked solution →Benjamin Franklin explained early observations by supposing that one type of charge stayed put while the other:Read the answer and worked solution →Compared with the tiny nucleus, the electrons around it form a cloud that is:Read the answer and worked solution →A charged comb picks up small pieces of paper that carry no net charge, because the paper is first:Read the answer and worked solution →Catch the charge ideasRead the answer and worked solution →Pop the field wordsRead the answer and worked solution →Run the charge gatesRead the answer and worked solution →Slice the electricity wordsRead the answer and worked solution →Conductor or insulatorRead the answer and worked solution →

Worked practice questions

Charge or mass

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Left
Charge
Items
  1. Item
    Can be negative
    Answer
    Charge
  2. Item
    Multiples of e
    Answer
    Charge
  3. Item
    Two kinds
    Answer
    Charge
  4. Item
    Always positive
    Answer
    Mass
  5. Item
    Only one kind
    Answer
    Mass
  6. Item
    Never cancels out
    Answer
    Mass
Right
Mass
Instructions
Swipe left if it is true of charge, right if of mass.
_Source: syllabus Physics Part I, Chapter 1, Electric Charges and Fields._

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Fill the gaps on electric charge

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Missing parts
  1. Answer
    amber
    Choices
    1. amber
    2. metal
    3. spark
  2. Answer
    conductors
    Choices
    1. conductors
    2. insulators
    3. magnets
  3. Answer
    conserved
    Choices
    1. conserved
    2. doubled
    3. lost
  4. Answer
    e
    Choices
    1. e
    2. q
    3. n
Complete the statement
Elektron means {0}. Materials that pass electricity easily are {1}. Total charge of an isolated system is {2}. Free charges are multiples of the unit {3}.
Instructions
Tap a word to drop it into the empty slot.
_Source: syllabus Physics Part I, Chapter 1, Electric Charges and Fields._

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Spot the one that does not fit

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Questions
  1. Items
    1. Glass
    2. Metal
    3. Human body
    4. Earth
    Odd item
    Glass
  2. Items
    1. Porcelain
    2. Plastic
    3. Wood
    4. Copper
    Odd item
    Copper
  3. Items
    1. Magnitude
    2. Scalar
    3. Adds like numbers
    4. Has direction
    Odd item
    Has direction
  4. Items
    1. Conserved
    2. Quantised
    3. Two kinds
    4. Created freely
    Odd item
    Created freely
Instructions
Tap the item that does not belong with the rest.
_Source: syllabus Physics Part I, Chapter 1, Electric Charges and Fields._

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