CIRCUIT is the same as the heat dissipated in DC circuit is called RMS value provided, both the AC and DC CIRCUITS have EQUAL value of resistance and are operated at the same time.Calculation:Given:Current = i(t) = (18 + 10 SIN ωt + 7 sin 2ωt)RMS value of current = \( \sqrt {{{18}^2} + (\frac{{{10}}}{\sqrt2})^2 +( \frac{{{7}}}{\sqrt2}}) ^2\) = 19.962 A ≈ 20 A Moving coil instrument (PMMC) always measures the average value of the signal provided.PMMC instruments are suitable for MEASURING only DC quantities whereas MI instruments are suitable for measuring both AC and DC quantities.

"> CIRCUIT is the same as the heat dissipated in DC circuit is called RMS value provided, both the AC and DC CIRCUITS have EQUAL value of resistance and are operated at the same time.Calculation:Given:Current = i(t) = (18 + 10 SIN ωt + 7 sin 2ωt)RMS value of current = \( \sqrt {{{18}^2} + (\frac{{{10}}}{\sqrt2})^2 +( \frac{{{7}}}{\sqrt2}}) ^2\) = 19.962 A ≈ 20 A Moving coil instrument (PMMC) always measures the average value of the signal provided.PMMC instruments are suitable for MEASURING only DC quantities whereas MI instruments are suitable for measuring both AC and DC quantities.

">

Current flowing in a circuit is i = (18 + 10sinωt + 7sin2ωt). A moving iron ammeter is connected in the circuit to measure this current. The reading of the meter will be approximately

Electrical Engineering Indicating Instruments in Electrical Engineering . 7 months ago

  1.89K   0   0   0   0 tuteeHUB earn credit +10 pts

5 Star Rating 1 Rating

Moving iron (MI) instruments always measures the RMS value of a given quantity.RMS (Root mean square) value:RMS value is based on the heating effect of wave-forms.The value at which the heat dissipated in AC CIRCUIT is the same as the heat dissipated in DC circuit is called RMS value provided, both the AC and DC CIRCUITS have EQUAL value of resistance and are operated at the same time.Calculation:Given:Current = i(t) = (18 + 10 SIN ωt + 7 sin 2ωt)RMS value of current = \( \sqrt {{{18}^2} + (\frac{{{10}}}{\sqrt2})^2 +( \frac{{{7}}}{\sqrt2}}) ^2\) = 19.962 A ≈ 20 A Moving coil instrument (PMMC) always measures the average value of the signal provided.PMMC instruments are suitable for MEASURING only DC quantities whereas MI instruments are suitable for measuring both AC and DC quantities.

Posted on 29 Nov 2024, this text provides information on Electrical Engineering related to Indicating Instruments in Electrical Engineering. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

Take Quiz To Earn Credits!

Turn Your Knowledge into Earnings.

tuteehub_quiz

Tuteehub forum answer Answers

Post Answer

No matter what stage you're at in your education or career, TuteeHub will help you reach the next level that you're aiming for. Simply,Choose a subject/topic and get started in self-paced practice sessions to improve your knowledge and scores.