An electric field due to a positively charged long straight wire at a distance r from it is proportional to `r_(-1)` in magnitude. Two electrons are orbiting such a long straight wire in circular orbits of radii `1 Å` and `2 Å`. The ratio of their respective time periods isA. `1:1`B. `1:2`C. `2:1`D. `4:1`

An electric field due to a positively charged long straight wire at a

1.	An electric field due to a positively charged long straight wire at a distance r from it is proportional to `r_(-1)` in magnitude. Two electrons are orbiting such a long straight wire in circular orbits of radii `1 Å` and `2 Å`. The ratio of their respective time periods isA. `1:1`B. `1:2`C. `2:1`D. `4:1`
Answer» Correct Answer - B

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