Electricity flows well through "conductors." A good example of a conductor is ___________________.
metal
wood
Q.2.
Electricity does not flow well through insulators. A good example of an insulator is _________________.
plastic
metal
Q.3.
A material through which heats or electricity flows easily.
electric current
radiation
condutor
insulator
Q.4.
A positive ion is an atom with more electrons than protons
TRUE
FALSE
Q.5.
It is a reserve of chemical energy that can be transformed into electrical energ
battery
utilizer
wire
All of above
Q.6.
Resistor
A flow of electricity through a conductor
a path through which electricity can flow
a device that can open or close a circuit
an object in an electrical circuit that resists the flow of energy
Q.7.
A material that slows or stops the flow of energy, such as thermal energy, electricity and sound.
electric current
radiation
condutor
insulator
Q.8.
Como son la cupla C y la velocidad V, cuanto un vehículo eléctrico esta usando freno regenerativo
+C y +V
-C y -V
-C y +V
-C y -V
Q.9.
Un extractor presenta una cupla resistente similar a la funcion matematica:
y=axy=\frac{a}{x}y=xa
y=x+by=x+by=x+b
y=x2+cy=x^2+cy=x2+c
Ninguna de las anterisores
Q.10.
Para calculo simplificado del tiempo de aceleración, si la cupla de aceleración es igual a: Cac=0.45(Car+Cmax)−0.5Cn NcNnCac=0.45\left(Car+C\max\right)-0.5Cn\ \frac{Nc}{Nn}Cac=0.45(Car+Cmax)−0.5Cn NnNc corresponde a
Cupla resistente Constante
Cupla resistente Lineal
Cupla resistente Parabolica
Ninguna de las anteriores
Q.11.
Que motor es de tracción por excelencia
Motor síncrono
Motor shunt
Motor serie
Motor asíncrono
Q.12.
La ecuación del momento de inercia equivalente rotacional es: