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1.
At resonance frequency the impedance in series LCR circuit is
2.
At resonant frequency the current amplitude in series LCR circuit is
3.
In a series LCR circuit the Voltage across an inductor, capacitor and resistor are 20 V, 20 V and 40 V respectiVely. The phase difference between the applied Voltage and the current in the circuit is
4.
In series LCR circuit, the phase angle between supply Voltage and current is
5.
In which of the following circuits the maximum power dissipation is observed?
6.
In an alternating current circuit consisting of elements in series, the current increases on increasing the frequency of supply. Which of the following elements are likely to constitute the circuit?
7.
Which of the following graphs represents the correct Variation of capacitive reactance Xc with frequency V u?
8.
Which of the following graphs represents the correct Variation of inductiVe reactance XL with frequency u?
9.
In a pure capacitive circuit if the frequency of ac source is doubled, then its capacitive reactance will be
10.
In the case of an inductor