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1.
Electrical energy is transmitted oVer large distances at high alternating Voltages. Which of the following statements is not correct?
2.
When an AC Voltage of 220 V is applied to the capacitor C
3.
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?
4.
The output of a step-down transformer is measured to be 24 V when connected to a 12 watt light bulb. The Value of the peak current is
5.
As the frequency of an ac circuit increases, the current first increases and then decreases. What combination of circuit elements is most likely to comprise the circuit?
6.
Which of the following combinations should be selected for better tuning of an LCR circuit used for communication?
7.
An inductor of reactance 1 ? and a resistor of 2 ? are connected in series to the terminals of a 6 V (rms) a.c. source. The power dissipated in the circuit is
8.
To reduce the resonant frequency in an LCR series circuit with a generator
9.
10.
When a Voltage measuring device is connected to AC mains, the meter shows the steady input Voltage of 220 V. This means