Энергия магнитного поля катушки равна<img src="/close/store/examRes/%7B4700FCEE-6EA7-4C6A-BAA8-F56A928EE4C6%7D/m4e51.gif" /><img src="/close/store/examRes/%7B4700FCEE-6EA7-4C6A-BAA8-F56A928EE4C6%7D/m4e54.gif" /><img src="/close/store/examRes/%7B4700FCEE-6EA7-4C6A-BAA8-F56A928EE4C6%7D/m4e52.gif" /><img src="/close/store/examRes/%7B4700FCEE-6EA7-4C6A-BAA8-F56A928EE4C6%7D/m4e53.gif" /> <img src="/img/a6/416a0f8ea000ccb4771e86360d.gif" />, <img src="/img/32/758c4b778f8b70605e8398ac02.gif" />, <img src="/img/43/4b086cd6e5bdbfc1f8a9a77683.gif" />, <img src="/img/0f/a7b22713cfdaa7b6fa1df45b98.gif" />