If the local radio station WXYZ at 1020 on the AM dial wants to increase the strength of its radio signal so that it can reach a wider audience, it should
A)	increase the average amount of electrical charge that oscillates up and down its antenna but keep the frequency of oscillation the same.
B)	increase the frequency of oscillation of the electrical charge that travels up and down its antenna but keep the average amount of charge constant.
C)	increase the average amount of electrical charge that oscillates up and down its antenna and increase the frequency of oscillation.
D)	increase the temperature of the antenna by running more current through the heater coil.
Answer:A
If the local radio station WXYZ at 1020 on the AM dial wants to increase the strength of its radio signal so that it can reach a wider audience, it should
A)	increase the average amount of electrical charge that oscillates up and down its antenna but keep the frequency of oscillation the same. B)	increase the frequency of oscillation of the electrical charge that travels up and down its antenna but keep the average amount of charge constant. C)	increase the average amount of electrical charge that oscillates up and down its antenna and increase the frequency of oscillation. D)	increase the temperature of the antenna by running more current through the heater coil.