Answer: Electric current
Explanation: The direction of the magnetic field produced by an electric current will change when the direction of the electric current changes.
Answer:
R = 6.67 Ohm's
Explanation:
Resistance is a property of a material that measures the opposition to the flow of current through the material. It is measured in Ohm's.
R = (ρl) ÷ A
where; R is the resistance of the material, A is its cross sectional area, l is its length and ρ is its resistivity.
For the first nichrome wire, resistance is 5 Ohm's.
i.e R = (ρl) ÷ A = 5 Ohm's
For the second nichrome wire, length = 4l, and area of cross section = 3A. The resistance of the second wire can be determined by;
R = (4ρl) ÷ 3A
= 
{(ρl) ÷ A}
= × 5
R = 6.67 Ohm's
Resistance of the second nichrome wire is 6.67 Ohm's.
Answer:
the answer is B hardness and brittleness
Explanation:
I did edgenuity test ;)
The generation of more potent telescopes to observe the Universe made things easier/better for us to research and explore our solar system.
<h3>What are technological advances in Astronomy research?</h3>
The technological advances in Astronomy research are all those devices and strategies aimed at enhancing our ability to explore the Universe, which is represented by telescopes that generate high-resolution images.
Therefore, with this data, we can see that technological advances in Astronomy research are associated with the development of potent telescopes which facilitate the observation of other celestial bodies from the Earth.
Learn more about technological advances in Astronomy here:
brainly.com/question/20797642
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