Which of the following statements in not correct about Electromagnetic Flow meter?

Question

Question

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UGC NET Paper 2: Electronic Science 29 Oct 2022 Shift 1

This technique can be used for electrical non-contacting fluids like gases.
The principle of operation is directly analogus to Faraday's law of electromagnetic induction for solid conductors.
Electromagnetic flow meter is suitable for fluids containing solid matter.
The use of these meters is limited to fluids having conductivity atleast of the order of 1 × 10⁻⁶ ℧/cm. (mho/cm)

Answer 1

Concept:

Electromagnetic flow meter has many properties:

It is based on faraday's law of electromagnetic induction. that is E= V*B*D (where E is the electromagnetic force, V is velocity,B is magnetic field strength,D diameter).
It is not affected by pressure, temperature, or viscosity.
it is easily detects liquids has solid contamination.
it can not detects liquids and gases which has no electrical conductivity.
it has a conductivity order of (1-5)× \({10}^{-6}\frac{s}{cm}\).

In the given options option 1 does not match with the electromagnetic flow meter properties.

so the correct option is 1.