Answer:
I = 1.38 A
Explanation:
Given that,
Charge, q = 5000 C
Time, t = 1 hour = 3600 s
We need to find the current intensity. The current intensity is equal to the electric charge per unit time. It can be given by :
Substitute all the values in the above formula
So, the current intensity is 1.38 A.
Answer:
The distance is 
Explanation:
From the question we are told that
The period of the moon 
The mass of the planet is 
Generally the period of the moon is mathematically represented as
Here G is the gravitational constant with value
=>
=> 
=> 
=> ![r = \sqrt[3]{ 1.7031241*10^{23}}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%5B3%5D%7B%201.7031241%2A10%5E%7B23%7D%7D)
j
=>
The density is 5.22 g/cm³.
Density=
Density=
Density= 5.22 g/cm³
Answer:
Yes option A is right.
Explanation:
As we know that the "Opposite charges attract and like charges repel eachother". So based upon that fact we find out the sphere will be repelled or attract by the rod. As in this case metallic sphere was neutral initially but then we touched the rod with it. Although it was for few seconds but the charge is transferred to the sphere. Now both sphere and the rod have charge. After the seperation we look towards their respond If both have the opposite charge they will attract eachother. But here in this case they repel because they have the same charge, as we have charged the neutral sphere with the rod so we already know that they have the same charges that is why they are repelling eachother.
Insulation from the ground means that blocking the way of charges or free electrons from earth to metallic sphere and vice versa. As there exists free electrons and charges in earth they would flow into the metallic objects. So for more precise and accurate experiments we insulate the metals or prevent the metals from touching the earth surface to avoid the flow of charges through them. I hope it will help you.
