3 years ago

the radius of planet is drecresing by 50%without changing its mass . the acceleration due to gravity will be?

1 answer:

4 0

4 times more then real

Explanation:

if the radius of the earth decrease by 50% then the acceleration due to gravity increases by 4 times.

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avanturin [10]

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6.5454 m

Explanation:

Let the distance from the wire carrying 3 A current is x

Then the distance from the the carrying current 8 A is 24-x

We know that magnetic field due to long wire is given by $B=\frac{\mu _0i}{2\pi r}$

It is given that magnetic field is zero at some distance so

$\frac{\mu _0i_1}{2\pi x}=\frac{\mu _0i_2}{2\pi (24-x)}$

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3 0

3 years ago

the radius of planet is drecresing by 50%without changing its mass . the acceleration due to gravity will be?​