Home
Class 12
PHYSICS
If some charge is given to a conducting ...

If some charge is given to a conducting object of any shape, then match the following columns, under electrostatic condition
`{:(,"Column I",,"Column II"),((A),vec(E)" at a point within conducting material",(p),"Must be zero"),((B),vec(E)"at a point outside the material ",(q),"May be Zero"),((C ),vec(E)"at a point in a cavity having no charge",(r ),"May be uniform but not zero"),((D),vec(E)"at a point in the cavity having some charge",(s),"May be non-uniform"),(,,(t),"Cannot predict"):}`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of matching the electric field conditions in a conducting object with the given options, we can analyze each part step by step. ### Step-by-Step Solution: 1. **Electric Field at a Point Within Conducting Material (A)**: - In a conductor at electrostatic equilibrium, the electric field inside the conducting material is always zero. This is because the charges redistribute themselves on the surface of the conductor, and any electric field would cause further movement of charges until equilibrium is reached. - **Conclusion**: A matches with P (Must be zero). 2. **Electric Field at a Point Outside the Material (B)**: - The electric field just outside a charged conductor can be calculated using Gauss's law. However, if there are other conductors nearby, their electric fields can cancel each other out, leading to a situation where the electric field outside may be zero. - **Conclusion**: B matches with Q (May be Zero). 3. **Electric Field at a Point in a Cavity Having No Charge (C)**: - If there is a cavity inside a conductor and there is no charge present in that cavity, the electric field inside that cavity is also zero. This is due to the fact that the charges on the conductor's surface will create an opposing electric field that cancels out any field within the cavity. - **Conclusion**: C matches with P (Must be zero). 4. **Electric Field at a Point in a Cavity Having Some Charge (D)**: - If there is a charge present in the cavity, the electric field can vary. It may be zero if the charge distribution is such that the fields cancel out, but it can also be non-uniform depending on the configuration of the charges. - **Conclusion**: D matches with S (May be non-uniform). ### Final Matching: - A → P (Must be zero) - B → Q (May be Zero) - C → P (Must be zero) - D → S (May be non-uniform)
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-G(INTEGER ANSWER TYPE QUESTIONS)|9 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-H Multiple True-False Type Questions|4 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-E (Assertion-Reason Type Questios)|12 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D Assertion-Reason Type Questions|25 Videos

  • GRAVITATION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D (ASSERTION-REASON TYPE QUESTIONS)|15 Videos

Similar Questions

Explore conceptually related problems

If net force on a system of particles is zero. Then {:(,"Column I",,"Column II",),((A),"Acceleration of centre of mass",(p),"Constant",),((B),"Velocity of centre of mass",(q),"Zero",),((C ),"Momentum of centre of mass",(r ),"May be zero",),((D),"Velocity of an individual particle of the system",(s),"May be constant",):}

Match the following columns. |{:(,"Column I",,"Column II"),((A),"Constant positive acceleration",(p),"Speed may increase"),((B),"Constant negative acceleration",(q),"Speed may decrease"),((C ),"Constant displacement",(r ),"Speed is zero"),((D),"Constant slope of a-t graph",(s),"Speed must increase"),(,,(t),"Speed must decrease"):}|

Column I shows distributionof electric field liness and column II shows charge distribution . Match the columns. {:(,"Column I ",,"Column II"),((A),"Straight lines but not parallel",(p),"Uniformly distributed charged shell"),((B), "Straight lines but parallel ",(q),"Uniformly distributed charged long rod"),((C ),"Curved lines",(r ),"Uniformly distributed infinite charged sheet"),((D), "Some regions where no lines are present",(s),"Electric dipole"),(,,(t),"Any conducting material"):}

ointvec(E).dvec(s)= Electric flux through a closed surface 's' Match the column : {:(,"Column I",,"Column II"),((A),"The value of"oint vec(E).dvec(s) " is affected by ",(p),+ve " charge inside 's'"),((B),"Electric field at a point inside 's' is affected by" ,(q),-ve "charge inside 's'"),((C ),"Electric field at a point outside 's' is affected by ",(r ),+ve" charge outside 's'"),((D),"Electric field at a point at the surface of 's' is affected by ",(s),"-ve charge outside 's'"),(,,(t),"Outside charges but very far away from 's'"):}

Match the following : {:(,"Column -I",,"Column -II"),((A),"Acceleration due to gravity",(p),"Kepler's law"),((B),"Law of periods",(q),"Vector quantity"),((C ),"Orbital speed",(r ),"Uniform near earth surface"),((D),"Gravitational potential",(s),"Is nearly zero at infinity"):}

Column I shows charge distribution and column II shows electrostatic field created by that charge at a point r distance from its centre. {:(,"Column I ",,"Column II"),((A),"A stationary point charge",(p),E prop r^(0)),((B),"A stationary uniformly long charge rod",(q),Eprop r^(1)),((C ), "A stationary electric dipole",(r ),E prop r^(*-1)),,(s),E prop r^(-2) ),(,,(t ),E propr^(-3)):}

Match the column {:(,"Column I ",,"Column II"),((A),"Electrostatic attraction can be possible",(p),"Between like charged particles"),((B),"Electrostatic repulsion can be possible",(q),"Between unlike charged particle"),((C ),"Introduction of dielectric will not change the interaction",(r ),"Between like charged bodies"),((D), "No electrostatic force can be possible",(s),"Between unlike charged bodies"),(,,(t),"Between uncharged and charged bodies"):}

Vector A is pointing eastwards and vector B northwards .If |A|=|B| then match the following two columns. {:(,"Column I ",,"Column II"),((A),(A+B),(P),"north -east"),((B),(A-B),(Q),"Vertically upwards"),((C), (AxxB),(r),"south-east"),((D), (AxxB)xx(AxxB),(s),"None"):}

Some laws/processes are given in column-I. Match these with the physical phenomena given in column-II. {:(,"Column I",,"Column II"),((A),"Transition between two atomic energy levels".,(p),"Characteristic X-rays"),((B),"Electron emission from a material",(q),"Photoelectric effect"),((C),"Moaley's law",(r),"Hydrogen spectrum"),((D),"Change of photon energy into kinetic energy of electrons",(s),beta-"decay"):}

Match the column {:(,"Column I",,"Column II"),((A),"A stationary positive charge",(p),"Exert electrostatic force on other charge directly"),((B), "A stationary negative charge",(q),"Produces electrostatic field directly"),((C ),"A stationary electrically neutrally object",(r ),"Acceleration in the direction of electrostatic field"),((D),"Electrostatic field",(s),"Accelerates opposite to the direction of electrostatic field"),(,,(t ),"Cannot exert force on itself"):}