Consider the following instruments and find absolute instruments are ___

Consider the following instruments

  1. Tangent galvanometer
  2. Rayleigh current balance
  3. Household energy meter
  4. Hot wire ammeter

Out of above absolute instruments are
A. 1, 2 and 3
B. 1, 2 and 4
C. 1 and 2
D. 2, 3 and 4

Show Answer

Answer: C

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