Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Community ▾
A
A
A series LCR circuit takes 380 W from a source of fixed… | StemPy Lab
Quizzes
/
A series LCR circuit takes 380 W from a source of fixed voltage when it is in resonance. The frequency is then changed to a value at which the net reactance has the same size as the resistance. How much power does the circuit take now?
Physics
Hard
High School (11–12)
Electricity & Magnetism › Alternating Current
Electricity & Magnetism › Current Electricity
Electricity & Magnetism › Electromagnetic Induction
JEE Main
A-Level
IB
Created by
StemPy Lab
A series LCR circuit takes
380
380
380
W from a source of fixed voltage when it is in resonance. The frequency is then changed to a value at which the net reactance has the same size as the resistance. How much power does the circuit take now?
269
W
269\ \text{W}
269
W
190
W
190\ \text{W}
190
W
126.7
W
126.7\ \text{W}
126.7
W
95
W
95\ \text{W}
95
W
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← A lamp marked 30 V, 15 W is to be run from a 50 V, 50 Hz supply. A coil of negligible resistance is put in series with it. What inductance must the coil have for the lamp to work at its rating?
In a series LCR circuit, voltmeters show 15 V across the resistor, 58 V across the coil and 22 V across the capacitor. All are rms readings. What is the power factor of the circuit? →
More on
Electricity & Magnetism › Alternating Current
Electricity & Magnetism › Current Electricity
Electricity & Magnetism › Electromagnetic Induction
Discussion (0)
Log in
to join the discussion.
Loading…
All questions on this topic →
Problems on this topic
An LC circuit has L = 0.50 H, C = 20 µF and a resistance of 2.0 Ω…
Hard
A capacitor of 12 µF is charged to 30 V…
Medium
A coil of 45 mH is joined to a capacitor of 0.80 µF…
Easy
A line has a total resistance of 12 Ω. At the sending end the voltage is 33 kV and the current is…
Hard
All problems on this topic →