Given below are two statements:
Statement-$I$: $A$ point charge is brought into an electric field. The value of the electric field at a point near the charge may increase if the charge is positive.
Statement-$II$: An electric dipole is placed in a non-uniform electric field. The net electric force on the dipole will not be zero.
Choose the correct answer from the options given below:
Statement-$I$: $A$ point charge is brought into an electric field. The value of the electric field at a point near the charge may increase if the charge is positive.
Statement-$II$: An electric dipole is placed in a non-uniform electric field. The net electric force on the dipole will not be zero.
Choose the correct answer from the options given below:
- ABoth Statement-$I$ and Statement-$II$ are true.
- BBoth Statement-$I$ and Statement-$II$ are false.
- CStatement-$I$ is true but Statement-$II$ is false.
- DStatement-$I$ is false but Statement-$II$ is true.
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Five balls marked $a$ to $e$ are suspended using separate threads. Pairs $(b, c)$ and $(d, e)$ show electrostatic repulsion,while pairs $(a, b)$,$(c, e)$,and $(a, e)$ show electrostatic attraction. The ball marked $a$ must be:
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View SolutionColumn $II$ corresponds to the graph of magnitude of electric field versus distance from the centre of the charge distribution in Column $I$. Match the items in Column $I$ with the corresponding graphs in Column $II$.
Column-$I$ Column-$II$ $(A)$ Ring along its axis $(P)$ Graph with a peak at a distance $r > 0$ $(B)$ Uniformly charged solid sphere $(Q)$ Graph increasing linearly for $r < R$ and decreasing as $1/r^2$ for $r > R$ $(C)$ Uniformly charged spherical shell $(R)$ Graph with zero field for $r < R$ and decreasing as $1/r^2$ for $r > R$ $(D)$ Combination of charge $+Q$ and $-Q$ at the perpendicular bisector $(S)$ Graph with a maximum at the center and decreasing as $r$ increases
| Column-$I$ | Column-$II$ |
|---|---|
| $(A)$ Ring along its axis | $(P)$ Graph with a peak at a distance $r > 0$ |
| $(B)$ Uniformly charged solid sphere | $(Q)$ Graph increasing linearly for $r < R$ and decreasing as $1/r^2$ for $r > R$ |
| $(C)$ Uniformly charged spherical shell | $(R)$ Graph with zero field for $r < R$ and decreasing as $1/r^2$ for $r > R$ |
| $(D)$ Combination of charge $+Q$ and $-Q$ at the perpendicular bisector | $(S)$ Graph with a maximum at the center and decreasing as $r$ increases |
Medium
View SolutionThe figure shows a nonconducting ring which has positive and negative charge non-uniformly distributed on it such that the total charge is zero. Which of the following statements is true?
Difficult
View SolutionAn uncharged metal sphere is placed between two charged parallel plates. The pattern of the electric field lines will be:
Medium
View SolutionTwo point charges of $40 \ \mu C$ and $-20 \ \mu C$ are placed at a certain distance. If they are brought into contact and then placed at the same distance,what is the ratio of the electrostatic force in the two cases?
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