有一线圈，若将它接在电压U为220kV，频率f为50Hz的交流电源上，测得通过线圈的电流I为5A，求线圈的电感L是多少?
参考答案：
根据句意及首字母汉语的提示，补全单词。
1. There is a big r __ in the middle of the road.
2. You're not supposed to put you e __ on the table while eating.
3. Jackson was a great a __ in the world.
4. The thief e __ from the house and ran away.
5. Do you know if anyone s __ the explosion（爆炸）?
