IT WOULD act like an electromagnet even now
this same thing happens when we make use of solenoids. we have a wire wound around a hollow pipe , and that pipe would have air in it . as there is no natural vaccum here, the air will get ionised.. spreading charges .. around itself..
Answer: C. Both observation 1 and observation 2
Explanation: A geocentric model shows the stars and the sun and where they move to.
God bless. <3
Answer:
A laser is created when the electrons in atoms in special glasses, crystals, or gases absorb energy from an electrical current or another laser and become “excited.” The excited electrons move from a lower-energy orbit to a higher-energy orbit around the atom's nucleus.
Answer:
Sin(60°)=
Explanation:
Assuming the given angles are in degrees
We know that Sin(A-B)=SinACosB-CosASinB
Here A=100° and B=40°
