Why do ammeters burn when connected in parallel? Since most ammeter’s measure current through a very small internal resistance; when connected in parallel nearly all the current will travel through the ammeter loop rather than the circuit. This is because the current will choose the path of the least resistance. Hence the ammeter burns. Why […]
Are rainbows at night rare?
Are rainbows at night rare? The moon is the key, just as sunlight produces rainbows during the day, moonlight can produce rainbows at night. Moonbows are rare because moonlight is not very bright. A bright moon near to full is needed, it must be raining opposite the moon, the sky must be dark and the […]
When two variables decrease Together they are?
When two variables decrease Together they are? Positive correlation is a relationship between two variables in which both variables move in tandem—that is, in the same direction. A positive correlation exists when one variable decreases as the other variable decreases, or one variable increases while the other increases. How do you find the relationship between […]
Is hammer a metal or non metal?
Is hammer a metal or non metal? In contrast, materials like coal and sulphur are soft and dull in appearance. They break down into powdery mass on tapping with hammer. They are not sonorous and are poor conductors of heat and electricity. These materials are called non-metals. Can a hammer break metal? Because the hammer’s […]
What is the difference between a desert and a savanna?
What is the difference between a desert and a savanna? savanna is tropical grassland with widely scattered trees or clumps of trees. A Desert is a biomein which the lack of precipitation limits plants growth; deserts are found in both temperate and tropical regions. What are the three types of prairies? Three types of prairie […]
Is RNA the same as DNA?
Is RNA the same as DNA? There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine. What is RNA and function? The […]
What is electric field and its SI unit?
What is electric field and its SI unit? Electric fields and magnetic fields are both manifestations of the electromagnetic force, one of the four fundamental forces (or interactions) of nature. The derived SI units for the electric field are volts per meter (V/m), exactly equivalent to newtons per coulomb (N/C). What is SI unit of […]
Which direction does a freely suspended magnet point to?
Which direction does a freely suspended magnet point to? A freely suspended magnet always rests in the north-south direction because the magnetic south pole of the earth lies in the geographic north direction and the magnetic north pole of the earth lies in the geographical south direction. Why does a freely suspended magnet? A freely […]
What is the Mid Atlantic Ridge and why is it important?
What is the Mid Atlantic Ridge and why is it important? Mid-ocean ridges are geologically important because they occur along the kind of plate boundary where new ocean floor is created as the plates spread apart. Thus the mid-ocean ridge is also known as a “spreading center” or a “divergent plate boundary.” The plates spread […]
What are the 3 scientific attitudes?
What are the 3 scientific attitudes? In summary, the scientific attitude is composed of 3 main ideas: curiosity, skepticism, and humility. These 3 main components help to create a sort of a frameork, or guideline for aspiring scientists. What are the scientific attitudes and values? To be scientific mean that one has such attitudes as […]