When two two-terminal networks are equivalent, they are equivalent to ( ). A: external circuit B: internal circuit C: external circuit and internal circuit D: neither external circuit nor internal circuit

PCB的英文全称是 A: Printed Circuit Board B: Play Circuit Board C: Printed Circuit Box D: Play Circuit Box

Microcontroller minimum system circuit is the microcontroller can work the smallest circuit, generally including the clock circuit and reset circuit.

Microcontroller minimum system circuit is the microcontroller can work the smallest circuit, generally including the clock circuit and reset circuit. A: 正确 B: 错误

A closed path followed by main magnetic flux is known as a ( ). A: Magnetic circuit B: Electric circuit C: Magnetic saturation circuit D: None of the above

An open circuit pn junction under illumination generates an open circuit voltage Voc.

short circuit

A ______ circuit is one in which the current flows in a single continous path and is of the same value at every point in circuit

【单选题】The types of short-circuit in three-phase system are three-phase short-circuit, two-phase short-circuit, two-phase short-circuit grounding and single-phase short-circuit grounding. When the three phases of the system are short-circuited, they are still in the symmetrical stated. Other types of shorted circuit are asymmetric short circuit. Which of the following types is a symmetrical short circuit? A. Single phsae ground short circuit B. Three phase short circuit C. Two phase short circuit D. Two phase ground short circuit

In the circuit , then i=( ).f35803b1d9499749a47a43a19961bad4.png07cfeec3e482bc6316c1ccb7a5c09cff.png