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An a.c. supply gives 30 volt r.m.s which passes through a 10Ω resistance. The power dissipated in it is
Options
(a) 90 W
(b) 90√2 W
(c) 45 W
(d) 45√2 W
Correct Answer:
90 W
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Two radiations of photons energies 1 eV and 2.5 eV, successively
- In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two radiations of photons energies 1 eV and 2.5 eV, successively
- In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ
- In a P-N junction
- A wire elongates by l mm when a load W is hanged from it. If the wire goes over
- A microscope is having objective of focal length 1 cm and eye-piece of focal length 6 cm.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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