Advertisements
Advertisements
प्रश्न
What will be the potential difference in the circuit when direct current is passed through the circuit?
Advertisements
उत्तर
In case of DC ω = 0
XL = ωL = 0 Ω R = 160 Ω
Z = 160 Ω
e = 160 × i
e = 160V
APPEARS IN
संबंधित प्रश्न
An LR circuit contains an inductor of 500 mH, a resistor of 25.0 Ω and an emf of 5.00 V in series. Find the potential difference across the resistor at t = (a) 20.0 ms, (b) 100 ms and (c) 1.00 s.
An LR circuit with emf ε is connected at t = 0. (a) Find the charge Q which flows through the battery during 0 to t. (b) Calculate the work done by the battery during this period. (c) Find the heat developed during this period. (d) Find the magnetic field energy stored in the circuit at time t. (e) Verify that the results in the three parts above are consistent with energy conservation.
The selectivity of a series LCR a.c. circuit is large, when ______.
In series LCR circuit, the phase angle between supply voltage and current is ______.
At resonant frequency the current amplitude in series LCR circuit is ______.
A coil of 0.01 henry inductance and 1 ohm resistance is connected to 200 volt, 50 Hz ac supply. Find the impedance of the circuit and time lag between max. alternating voltage and current.
Which of the following statements about a series LCR circuit connected to an ac source is correct?
When an alternating voltage of 220V is applied across device X, a current of 0.25A flows which lags behind the applied voltage in phase by π/2 radian. If the same voltage is applied across another device Y, the same current flows but now it is in phase with the applied voltage.
- Name the devices X and Y.
- Calculate the current flowing in the circuit when the same voltage is applied across the series combination of X and Y.
A series LCR circuit is connected to an ac source. Using the phasor diagram, derive the expression for the impedance of the circuit.
Draw a labelled graph showing variation of impedance (Z) of a series LCR circuit Vs frequency (f) of the ac supply. Mark the resonant frequency as f0·
