A: external circuit
B: internal circuit
C: external circuit and internal circuit
D: neither external circuit nor internal circuit
举一反三
- The resistance value is infinite, the current passing through the resistance is always zero, and the voltage depends on the external circuit, then it is called as the short circuit state.
- The Thevenin equivalent circuit can be obtained by the method of equivalent transformation.
- 【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
- PCB的英文全称是 A: Printed Circuit Board B: Play Circuit Board C: Printed Circuit Box D: Play Circuit Box
- Two incomplete statements follow.<br/>Which words correctly complete each statement? A: 1 External, 2 Internal B: 1 Internal, 2 Internal C: 1 External, 2 External D: 1 Internal, 2 External
内容
- 0
Microcontroller minimum system circuit is the microcontroller can work the smallest circuit, generally including the clock circuit and reset circuit.
- 1
In the circuit shown, in terms of its external characteristics, ( )[img=692x106]17e0be1193fdf7f.png[/img]Figure 1 Figure 2 Figure 3 Figure 4 A: Figure 2 is equivalent to Figure 3 B: Figure 1 is equivalent to Figure 4 C: Figure 1 is equivalent to Figure 2
- 2
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
- 3
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
- 4
The ignition system falls into two sections: low-voltage circuit and high-voltage circuit.