NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Nuclear Physics
NEET · Physics · Nuclear Physics
Two point like charges Q1 and Q2 of whose strength are equal in...
Two point like charges Q1 and Q2 of whose strength are equal in absolute value are placed at a certain distance from each other. Assuming the field strength to be posiive in the positive direction of -axis the signs of the charges and Q2 for the graphs (field strength versus distance) shown in Figures and 4 are
Options
- AQ1 positive, Q2 negative; both positive; Q1 negative, Q2 positive; both negative
- BQ1 negative, Q2 positive;Q1 positive, Q2 negative; both positive; both negative
- CQ1 positive, Q2 negative; both negative; Q1 negative, Q2 positive; both positive
- DBoth positive; Q1 positive, Q2 negative; Q1 negative, Q2 positive; both negative
Correct answer
D. Both positive; Q1 positive, Q2 negative; Q1 negative, Q2 positive; both negative
Step-by-step solution
For a point charge, . For positive charges, electric field will decrease in positive direction as distance increases, (case 1 ), for negative charge, as distance increases field will increase (case 4). As we move from positive charge to negative charge, field will keep on decreasing (case 2 ), As we move from negative to positive charge, field will keep on increasing (case 3 )