A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction. Transformers are mainly used to increase or decrease voltage in power lines or electric power applications. So your answer would be D. transformer
Number 1 the correct answer
Answer:
6.8 eV
Explanation:
As you know, momentum (P) equals the mass of an object (M) times its velocity (V)
p=mv
Also, the momentum of the particle can be expressed in terms of the radius,
charge and field:
p=mv = qrB
K.Emax = p²/2m= q²r²B²/ 2m
K.Emax= (1.6x)² x (0.0104)² x (6.50 x)² / (2 x 9.1x)
K.E max= 1.16 x / 1.82 x
K.Emax= 6.37 J
work function 'Ф' = E- K.E max
since E= hc/ λ
Ф= hc/ λ - K.E max =>
Ф = 1.09 x J
Ф = 1.09 x / 1.6x
Ф =6.8 eV
Therefore, the work function of the metal is 6.8 eV
3rd nearest planet.
Neighborhood of Sun.
Orion arm.
Milky Way galaxy.
Local cluster.
13.8 billion years.
Universe.
Mind of God.