解析 A。在一个电路(electrical circuit)中,能量以电能(electrical energy)的形式传输。heat energy 是热能,电路主要不是以热能形式传输能量;light energy 是光能,一般不是主要以光能传输;mechanical energy 是机械能,电路不是以机械能传输能量。反馈 收藏
Answer to: In the circuit shown below, determine the potential difference across the 70.0 ohms resistor. Given: R = 291 ohms resistor By signing...
15. The electric current, I, in microamperes (uA), in a circuit is given by the equation$$ i = 4 \sin ( 3 6 0 t + 1 1 . 5 ) $$, where t is the time (in seconds).a) Sketch a graph of the function for 500 min. b) What is the amplitude of the[ C.3 marks| curren...
A liquid crystal driving power supply circuit for generating a potential used for driving the liquid crystal device has first to fourth switches (101 to 104) connected in series between a high potential line (105) and a low potential line (106). The first to fourth switches are turned on ...
aIn the circuit of Fig.1, the diode is a 1N1198 diode which acts as a blocking diode and an electric switch that allows voltage flow in one direction only. Thus, the capacitor is never subjected to a pulse of reverse polarity. 在电路,二极管是作为一个阻拦的二极管和一个电开关在一个方向...
15. The electric current, f, in microamperes (uA), in a circuit is given by the equation i=4sin(360t+11.5) , where t is the time (in seconds).a) Sketch a graph of the function for 500 min b) What is the amplitude of the[ C: 3 marks]current? [ A. 2 marks]c) What is...
Answer to: The circuit is in the figure below. determine the potential difference across the 70 ohms resistor. By signing up, you'll get thousands...
aThe electricity"enters"the circuits by the live wire and "returns"by the neutral wire.The earth wire is included in a circuit to protect the user from an electric shock should something in the circuit be faulty. 电"由载电线输入"电路,并且“由中立导线返回"。如果某事在电路是有毛病的,地线在...
The value of electric potential difference across an electrical circuit directly depends on two parameters: the electric current that flows in the circuit and the resistance of the circuit. Ohm's law helps to obtain the value of thi...
aThe electricity'enters'the circuits by the live wire and 'returns'by the neutral wire.The earth wire is included in a circuit to protect the user from an electric shock should something in the circuit be faulty. electricity'enters'the电路由载电线和‘returns'by中立导线。如果某事在电路是有毛病...