Medidas Elétricas
Quiz
•
Science
•
University
•
Practice Problem
•
Hard
Luiz Marangoni
Used 3+ times
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10 questions
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1.
MATH RESPONSE QUESTION
2 mins • 1 pt
Dispõe-se de um galvanômetro de 50uA de fundo de escala e 120R de resistência interna, pede-se:
A) Sensibilidade do galvanômetro
Mathematical Equivalence
ON
2.
MATH RESPONSE QUESTION
2 mins • 1 pt
Dispõe-se de um galvanômetro de 50uA de fundo de escala e 120R de resistência interna, pede-se:
B) Projetar um voltímetro (calcular RM) que meça até 10V
Mathematical Equivalence
ON
Answer explanation
Rm = 199,8KOhms
3.
MATH RESPONSE QUESTION
2 mins • 1 pt
Dispõe-se de um galvanômetro de 50uA de fundo de escala e 120R de resistência interna, pede-se:
C) Projetar um amperímetro (calcular Rs) que meça até 50mA
Mathematical Equivalence
ON
Answer explanation
Rs=0.12
4.
MATH RESPONSE QUESTION
2 mins • 1 pt
Um amperímetro tem 100mA de fundo de escala e 1 Ohm de resistência interna. Redimensione o aparelho para que tenha 2A de fundo de escala.
Mathematical Equivalence
ON
Answer explanation
Rs=0.0526 Ohm
5.
MATH RESPONSE QUESTION
2 mins • 1 pt
Um amperímetro de 20R de resistência interna é usado para medir a corrente no circuito. Calcule o erro na leitura.
Mathematical Equivalence
ON
Answer explanation
e%=9.2%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para medição de corrente o amperímetro deve ser inserido no circuito...
com cuidado
em paralelo
em série
nenhuma das anteriores
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para medição de tensão o voltímetro deve ser inserido no circuito...
com cuidado
em paralelo com a carga
em série com a carga
nenhuma das anteriores
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