| ⇦ | 
| ⇨ |
Power dissipated in an LCR series circuit connected to an a.c source of emf ? is
Options
(a) ?ￂﾲ √ [ R² + ( L? – 1 / C?)² ] / R
(b) ?ￂﾲ [ R² + ( L? – 1 / C?)² ] / R
(c) ?ￂﾲR / √ [ R² + ( L? – 1 / C?)² ]
(d) ?ￂﾲR / [ R² + ( L? – 1 / C?)² ]
Correct Answer:
?ￂﾲR / [ R² + ( L? – 1 / C?)² ]
Explanation:
Power dissipated in series LCR;
P = IR = / (Z) R
= ?ￂﾲR / [ R² + ( L? – 1 / C?)² ]
where Z = √ R² + ( L? – 1 / C?)²
is called the impedance of the circuit.
Related Questions: - A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes
- The most important characteristic of electron in the production of X-rays is
- In forward biasing of the p-n junction
- A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb.
- If critical angle for a material to air passage is 30°, the refractive index
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes
- The most important characteristic of electron in the production of X-rays is
- In forward biasing of the p-n junction
- A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb.
- If critical angle for a material to air passage is 30°, the refractive index
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply