| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring board which can suppress the magnetic field strength to reduce generation of unwanted electromagnetic waves. SOLUTION: On the board, a second line 2, a first line 1 and a third line 3 are formed closer to each other. In the first line 1, a first current I<SB>1</SB>, of a supply runs from the current source to a load 5, In the second line 2 and the third line 3 respectively, a second current I<SB>2</SB>and a third current I<SB>3</SB>are return currents from the load 5, and run in the reverse direction to the direction of the first current I<SB>1</SB>. COPYRIGHT: (C)2004,JPO
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