Um ventilador tem resistência interna de 2,0 Ω e consome 60 W de potencia, quando ligado à d.d.p. de 12 V. A força contraeletromotriz (f.c.e.m.) desse ventilador é de:
a) 12 V
b) 5 V
c) 10 V
d) 1 V
e) 2 V
Soluções para a tarefa
Resposta: b
Explicação: tá gostando de fazer isso na hora da prova né, show dms!
Resposta:
E|---------------------------------|---------------------------------||
B|---------------------------------|---------------------------------||
G|-----------------0-------0-------|----------------0-------0--------||
D|-----------7---------------------|---------4-----------------------||
A|---------------------------------|---------------------------------||
E|---0-----------------------------|---0-----------------------------||
~~~~~~~~~
E|---------------------------------|---------------------------------||
B|---------------------------------|-----------------------------0---||
G|----------------0--------0-------|-----------0------------2--------||
D|---------------------------------|-------------------0-------------||
A|---------4-----------------------|-------3-------------------------||
E|---0-----------------------------|--0------------------------------||
~~~~~~~~~ ~~~~~~~~~~
E|---------------------------------|---------------------------------||
B|---------------------------------|---------------------------------||
G|-----------------0-------0-------|----------------0-------0--------||
D|-----------7---------------------|---------4-----------------------||
A|---------------------------------|---------------------------------||
E|---0-----------------------------|---0-----------------------------||
~~~~~~~~~
E|---------------------------------|---------------------------------||
B|---------------------------------|-----------------------------0---||
G|----------------0--------0-------|-----------0------------2--------||
D|---------------------------------|---------------------------------||
A|---------4-----------------------|-------3-------------------------||
E|---0-----------------------------|--0-----------------1------------||
~~~~~~~~~ ~~~~~~~~~~
E|---------------------------------|---------------------------------||
B|---------------------------------|---------------------------------||
G|-----------------0-------0-------|----------------0-------0--------||
D|-----------7---------------------|---------4-----------------------||
A|---------------------------------|---------------------------------||
E|---0-----------------------------|---0-----------------------------||
~~~~~~~~~
E|---------------------------------|---------------------------------||
B|---------------------------------|-----------------------------0---||
G|----------------0--------0-------|-----------0------------2--------||
D|---------------------------------|-------------------0-------------||
A|---------4-----------------------|-------3-------------------------||
E|---0-----------------------------|--0------------------------------||
~~~~~~~~~ ~~~~~~~~~~
E|---------------------------------|---------------------------------||
B|---------------------------------|---------------------------------||
G|-----------------0-------0-------|----------------0-------0--------||
D|-----------7---------------------|---------4-----------------------||
A|---------------------------------|---------------------------------||
E|---0-----------------------------|---0-----------------------------||
~~~~~~~~~
E|---------------------------------|---------------------------------||
B|---------------------------------|-----------------------------0---||
G|----------------0--------0-------|-----------0------------2--------||
D|---------------------------------|---------------------------------||
A|---------4-----------------------|-------3-------------------------||
E|---0-----------------------------|--0-----------------1------------||
E|-----------------------0---------|----------------------0----------||
B|----------------------------0----|----------------------------0----||
G|-------------0-------------------|------------0--------------------||
D|---------7-----------------------|--------4------------------------||
A|---------------------------------|---------------------------------||
E|---0--------------0--------------|---0-------------0---------------||
E|-----------------------0---------|---------------------------------||
B|----------------------------0----|------------------------------0--||
G|-------------0-------------------|-------------0------------2------||
D|---------------------------------|----------------------0----------||
A|---------4-----------------------|---------3-----------------------||
E|---0--------------0--------------|--0------------------------------||
Explicação:
uma parte da Primeira metade da partitura de pull me under pra vc tocar na guitarra quando acabar a prova!!!