Electrostatics Question 700

Question: The electric field intensity just sufficient to balance the earth?s gravitational attraction on an electron will be: (given mass and charge of an electron respectively are 9.1×1031kg and 1.6×1019C. )

Options:

A) 5.6×1011N/C

B) 4.8×1015N/C

C) 1.6×1019N/C

D) 3.2×1019N/C

Show Answer

Answer:

Correct Answer: A

Solution:

[a] eE=mg

E=9.1×1031×101.6×1019=5.6×1011N/C



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक