I believe the statement would be that, A magnetic field created by the electric current causes the compass needle to move.
An electric current through a conductor creates a magnetic field,such that when a charged particle such as an electron, proton, or ion is in motion, magnetic lines of force rotate around the particle. Since current moving through the wire consists of electrons in motion, there is a magnetic field around the wire, which causes the compass needle to deflect.
Answer:
Which species?
Explanation:
If you are talking about dinosaurs and their relatives, then there are many theories. One is a flood wiped them out, which is what Christians believe. Scientists also think that a meteor, volcano eruption, or sudden change of climate could have caused the extinction.
Answer:
The density would stay the same.
Explanation:
The density would stay the same as density is an intensive property meaning it doesn't change based on the amount of matter that you have.
Answer:
The correct answer is - true.
Explanation:
Type I error occurs when the alternate hypothesis is accepted though it is false. A type II error is the failure to reject a false null hypothesis or an alternative hypothesis is rejected even though it is true.
For instance of type II errors: a blood test designed to detect the disease failing to detect the disease in a patient who really has the disease. In the given case vaccination not approved even though reduce the risk of contracting the HIV virus.
Thus, the correct answer is - true.
Explanation:
Metals have various properties and are widely used in various application purposes. Metals have good conductivity and ductility property for which they are used in electrical wires like copper. They have good luster because of which they are used in mirrors.
Similarly, tungsten is used in the filament of the bulb because of the properties like electrical conductivity, ductility and high melting point. Thus the filament does not melt even if the heat production is high.
