SATHEE: Electrostatics 4 Question 13

Electrostatics 4 Question 13

13. A few electric field lines for a system of two charges $Q_{1}$ and $Q_{2}$ fixed at two different points on the $x$ -axis are shown in the figure. These lines suggest that

(2010)

(a) $| Q_{1} | > | Q_{2} |$

(b) $| Q_{1} | < | Q_{2} |$

(d) at a finite distance to the right of $Q_{2}$ the electric field is zero

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Answer:

Correct Answer: 13. (a,d)

Solution:

From the behaviour of electric lines, we can say that $Q_{1}$ is positive and $Q_{2}$ is negative. Further, $| Q_{1} | > | Q_{2} |$

At some finite distance to the right of $Q_{2}$ , electric field will be zero. Because electric field due to $Q_{1}$ is towards right (away from $Q_{1}$ ) and due to $Q_{2}$ is towards left (towards $Q_{2}$ ). But since magnitude of $Q_{1}$ is more, the two fields may cancel each other because distance of that point from $Q_{1}$ will also be more.

$∴$ The correct options are (a) and (d).

Electrostatics 4 Question 13

13. A few electric field lines for a system of two charges $Q_{1}$ and $Q_{2}$ fixed at two different points on the $x$ -axis are shown in the figure. These lines suggest that

Answer:

Solution:

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Electrostatics 4 Question 13

13. A few electric field lines for a system of two charges Q1 and Q2 fixed at two different points on the x-axis are shown in the figure. These lines suggest that

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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13. A few electric field lines for a system of two charges $Q_{1}$ and $Q_{2}$ fixed at two different points on the $x$ -axis are shown in the figure. These lines suggest that