(Physics HELP) 1). Find the force and acceleration acting on the electron in the antenna? ?
2). If an electric field was constant how long would it take for the electron to accelerate the length of the antenna?
Use this information below to answer both questions:
Radio waves passes 1m and have an electric field strength of 1.5x10^-5 N/C.
- FiremanLv 71 month agoFavorite Answer
By F = qE
=> ma = eE
=>a = eE/m
=>a = [(1.6 x 10^-19) x 1.5 x 10^-5)]/(9.1 x 10^-31)
=>a = 2.64 x 10^6 m/s^2
Thus by s = ut + 1/2at^2
=> 1 = 0 + 1/2 x 2.64 x 10^6 x t^2
=>t = √[0.75 x 10^-6]
=>t = 0.87 x 10^-3 sec OR 0.87 ms