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Imagine a light planet revolving around ...

Imagine a light planet revolving around a very massive star in a circular orbit of radius r with direction T. On what power of r, will the square of time period depends if the gravitational force of attraction between the planet and the star is proportional to `r^(-5//2)` .

A

The current entering at O is equally divided into three `"resistances"`.

B

The current in the other three resistances `R_(12), R_(13), R_(23) is zero. `

C

The resistance `R_(02) and R_(03)` have equal magnitudes of current while the resistance `R_(01)` has different current.

D

Potential `V_2 = V_3 gt V_1`

Text Solution

Verified by Experts

The correct Answer is:
A, B
a., b.
`R_(01), R_(02), and R_(03)` are in parallel having same potential
difference, so they will have same current. Also current at O is
equally divided among three resistances.
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