회로에 전류를 흐르게 하는 전위의 차이 또는 에너지의 원천
The energy per unit charge that is converted from various forms of energy into electrical energy by a source such as a battery or generator.
예문:
"The battery's emf was measured at 1.5 volts using a high-impedance voltmeter."
"A changing magnetic field induces an emf in a nearby conductor according to Faraday's law."
전하의 운동에 의해 발생하는 전기장과 자기장의 총칭
A physical field produced by electrically charged objects, affecting the behavior of charged objects in the vicinity of the field.
예문:
"The device was shielded to prevent interference from external emf sources."
"Some people are concerned about the health effects of exposure to high levels of emf from power lines."