Does the following statement describe a function of DNA, a function of RNA, a function of both DNA and RNA, or a function of nei
ther DNA nor RNA? It stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids.
both DNA and RNA
RNA
DNA
Neither DNA or RNA
both DNA and RNA
RNA
DNA
Neither DNA or RNA
2 answers:
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Answer:
<em>Correct answer: B.</em>
Explanation:
Electrostatic Field
It measures the electric effect of a charge distribution in its surroundings. If we wanted to test or measure the electric field by using a point-charge of value q', then the electric field is
The electrostatic force between two point charges is
So, the electric field is
The theory shows that the electric field doesn't depend on the test charge used, i.e., if we now use q'=-q', the electric force will be of the same magnitude but in the opposite direction, thus the electric field will be the same. Let's recall the formula is used to compute the scalar value of the field, the direction must be studied separately.
Now, if we changed the test charge to another value, say 2q, the measured force will be
And the new electric field is
We can see the electric field is not affected by the value of the test charge.
Finally, if we move the test charge to another location and keep the same charge, the electric force will vary and the electric field will be different.
Correct answer: B.