Answer the following questions:(a) In any ac circuit, is the applied instantaneous voltage equal tothe algebraic sum of the instantaneous voltages across the serieselements of the circuit? Is the same true for rms voltage? (b) A capacitor is used in the primary circuit of an induction coil. (c) An applied voltage signal consists of a superposition of a dc voltageand an ac voltage of high frequency. The circuit consists of aninductor and a capacitor in series. Show that the dc signal willappear across C and the ac signal across L. (d) A choke coil in series with a lamp is connected to a dc line. Thelamp is seen to shine brightly. Insertion of an iron core in thechoke causes no change in the lamp’s brightness. Predict thecorresponding observations if the connection is to an ac line. (e) Why is choke coil needed in the use of fluorescent tubes with acmains? Why can we not use an ordinary resistor instead of thechoke coil?

Answer the following questions:(a) In any ac circuit, is the applied i

1.	Answer the following questions:(a) In any ac circuit, is the applied instantaneous voltage equal tothe algebraic sum of the instantaneous voltages across the serieselements of the circuit? Is the same true for rms voltage? (b) A capacitor is used in the primary circuit of an induction coil. (c) An applied voltage signal consists of a superposition of a dc voltageand an ac voltage of high frequency. The circuit consists of aninductor and a capacitor in series. Show that the dc signal willappear across C and the ac signal across L. (d) A choke coil in series with a lamp is connected to a dc line. Thelamp is seen to shine brightly. Insertion of an iron core in thechoke causes no change in the lamp’s brightness. Predict thecorresponding observations if the connection is to an ac line. (e) Why is choke coil needed in the use of fluorescent tubes with acmains? Why can we not use an ordinary resistor instead of thechoke coil?
Answer» Answer the following questions:(a) In any ac circuit, is the applied instantaneous voltage equal tothe algebraic sum of the instantaneous voltages across the serieselements of the circuit? Is the same true for rms voltage? (b) A capacitor is used in the primary circuit of an induction coil. (c) An applied voltage signal consists of a superposition of a dc voltageand an ac voltage of high frequency. The circuit consists of aninductor and a capacitor in series. Show that the dc signal willappear across C and the ac signal across L. (d) A choke coil in series with a lamp is connected to a dc line. Thelamp is seen to shine brightly. Insertion of an iron core in thechoke causes no change in the lamp’s brightness. Predict thecorresponding observations if the connection is to an ac line. (e) Why is choke coil needed in the use of fluorescent tubes with acmains? Why can we not use an ordinary resistor instead of thechoke coil?

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