What is the function of a battery in a circuit? A. To provide resistance. B. To measure current. C. To provide voltage. D. To measure resistance. 相关知识点: 试题来源: 解析 C。解析:电池在电路中的作用是提供电压。选项 A 提供电阻错误;选项 B 测量电流错误;选项 D 测量电阻错误。
C. It decreases as more resistors are added. D. It varies randomly. 相关知识点: 试题来源: 解析 A。解析:在串联电路中,电流处处相等。B 选项错误,增加电阻电流会减小;C 选项错误,不是增加电阻电流就减小;D 选项错误,不是随机变化。本题考查串联电路中电流的特点以及英语中“series circuit”的含义。
Part of a circuit is shown in the figure. a. What is the current through the 3.0Ωresistor? b. What is the value of the currentI? Parallel Combination of Resistors: In the case of the parallel combination of resistors: the potent...
Diodes are electronic devicesthat control the flow of current in the circuit. Since each diode functions as a one-way switch for the current, it allows the current to flow in a specific path while restricting it from flowing in the opposite direction. ...
What are the parts of the CPU? Working Principle of a Computer: A computer mainly works as a computing device. Also, it can be used to store data and instructions for future use. A computer can receive data using the input devices (i.e. mouse, keyboard), processes it within the proces...
What provides the power in a simple circuit? A. Wires B. Bulb C. Battery D. None of the above 相关知识点: 试题来源: 解析 C。解析:文章中明确提到“A simple circuit consists of a battery, wires, and a bulb. The battery provides the power.”,所以在简单电路中是电池提供电力。
A. It is different through each component. B. It is the same through each component. C. It is zero through each component. D. It is random through E. ach component. 相关知识点: 试题来源: 解析 B。解析:文中提到“In a series circuit, the total resistance is the sum of the indivi...
A photonic integrated circuit is a chip that could contain hundreds of photonic components, components that works with light (photons).
What is a electrical transducer? What is electrical transducer? What is periodicity? What is the flow of current proportional to? What are the other 3 parts of a electrical circuit including the switch? What is laser diode voltage? What is the purpose of a rheostat?
What are rocket engine combustion chambers made of? Which unit of electricity does the work in the circuit? What is the crankcase on a combustion engine? What are the two main types of external combustion engines? What are the other 3 parts of a electrical circuit including the switch?