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The instrument _________ is used for detecting electric current is
  • a)
    Galvanometer
  • b)
    Tube tester
  • c)
    Altimeter
  • d)
    Fathometer
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The instrument _________ is used for detecting electric current isa)Ga...
CONCEPT:
Galvanometer:
  • A galvanometer is used for detecting current in an electric circuit.
  • The galvanometer is the device used for detecting the presence of small currents and voltage or for measuring their magnitude.
  • The galvanometer is mainly used in the bridges and potentiometer where they indicate the null deflection or zero current.
  • The potentiometer is based on the premise that the current sustaining coil is kept between the magnetic field experiences a torque.
EXPLANATION:
  • From the above, it is clear that the galvanometer is the instrument used for detecting the presence of electric current in a circuit. Therefore option 1st is correct.
Additional Information 
Mistake Point
Difference between Ammeter and Galvanometer:
  • The ammeter shows only the magnitude of the current.
  • The galvanometer shows both the direction and magnitude of the current.
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The instrument _________ is used for detecting electric current isa)Galvanometerb)Tube testerc)Altimeterd)FathometerCorrect answer is option 'A'. Can you explain this answer?
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