13. Which of the following is the primary advantage of an alternating current (AC) over direct current (DC) ?
13. Which of the following is the primary advantage of an alternating current (AC) over direct current (DC) ?
The correct option is D d. AC voltages can be readily transformed to higher or lower voltage levels.
Answer-d
Advantages of AC current over DC:
o The major advantage that AC electricity has over DC electricity is that AC voltages can be readily transformed to higher or lower voltage levels, while it is difficult to do that with DC voltages.
o Since high voltages are more efficient for sending electricity great distances, AC electricity has anadvantage over DC. This is because the high voltages from the power station can be easily reduced toa safer voltage for use in the house.
o Changing voltages is done by the use of a transformer. This device uses properties of AC electromagnets to change the voltages.
o AC electricity also allows for the use of a capacitor and inductor within an electrical or electronic circuit. These devices can affect the way the alternating current passes through a circuit. They are only effective with AC electricity.
o A combination of a capacitor, inductor and resistor is used as a tuner in radios and televisions. Without those devices, tuning to different stations would be very difficult
Answer-d
Advantages of AC current over DC:
o The major advantage that AC electricity has over DC electricity is that AC voltages can be readily transformed to higher or lower voltage levels, while it is difficult to do that with DC voltages.
o Since high voltages are more efficient for sending electricity great distances, AC electricity has anadvantage over DC. This is because the high voltages from the power station can be easily reduced toa safer voltage for use in the house.
o Changing voltages is done by the use of a transformer. This device uses properties of AC electromagnets to change the voltages.
o AC electricity also allows for the use of a capacitor and inductor within an electrical or electronic circuit. These devices can affect the way the alternating current passes through a circuit. They are only effective with AC electricity.
o A combination of a capacitor, inductor and resistor is used as a tuner in radios and televisions. Without those devices, tuning to different stations would be very difficult
