
transformadores
Authored by hans ramirez
Physics
Professional Development
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5 questions
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1.
OPEN ENDED QUESTION
20 sec • 5 pts
¿cual es el principio físico con la cual funciona un transformador?
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2.
DRAW QUESTION
1 min • 5 pts
escribir en el recuadro de negro la ecuación de los transformadores ideales
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Para el transformador de la figura ,determinar la intensidad de la corriente eléctrica en la bobina del secundario sabiendo que el transformador reduce el voltaje de 220V a 110V .considere que la bobina del primario tiene 100 espiras y una resistencia eléctrica de 110Ω.
1A
4A
2A
0,5A
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
con respecto a los transformadores ideales , indique verdadero o falso segun corresponda:
I.el numero de vueltas en los bobinados es directamente proporcional a la intensidad de corriente que circula a través de ellas.
II.el transformador elevador es aquel donde el voltaje en el secundario es mayor que el voltaje en el primario
III.los transformadores funcionan siempre con DC
VVV
FVF
VVF
FFF
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
En un transformador la bobina del primario de 200 espiras entrega una potencia de 24W a la bobina del secundario que tiene 10 espiras.se conecta el primario a una fuente de 240V,determine la intensidad de la corriente en la bobina del secundario.
0,5A
1A
1,5A
2A
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