绕组是变压器的电路部分。由绝缘良好的漆包线或纱包线绕制而成。工作时和电源相连的绕组称为一次绕组（初级绕组）N1，与负载相连的线圈称为二次绕组（次级绕组）N2。
查看答案
变压器在工作时，铁芯和绕组都会发热，必须采取冷却措施。
A. 对
B. 错
变压器根据绕组和铁芯的安装位置不同，可分为心式和壳式两种。
A. 对
B. 错
_____________________ participate in each British Parliamentary debate round.
A. Two teams of two debaters
B. Four teams of one debater
C. Four teams of two debaters
D. Four teams of four debaters
The teams supporting the motion are referred to as the "____________."
A. Proposition
B. Opposition
C. Argumentaion
D. Motion
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