learn.howToCalculate
learn.whatIsHeading
Faraday's law relates changing magnetic flux to induced electromotive force. It's the principle behind transformers, generators, and induction cooktops.
공식
The calculator applies EMF = -dΦ/dt
- EMF
- -dΦ/dt — -dΦ/dt
단계별 가이드
- 1Enter magnetic flux change and time interval
- 2The calculator applies EMF = -dΦ/dt
- 3Results show induced voltage magnitude
풀어진 예시
입력
ΔΦ = 0.1 Wb, Δt = 0.001 s
결과
EMF = 100 V
Rapid flux change induces high voltage
피해야 할 일반적인 실수
- ✕Ignoring the rate of change; steady flux produces no EMF
- ✕Forgetting that area and angle both affect flux
자주 묻는 질문
What does the negative sign mean?
It represents Lenz's law: induced current opposes the change causing it.
How do transformers use Faraday's law?
Changing current in primary coil creates changing magnetic field, inducing voltage in secondary coil.
계산할 준비가 되셨나요? 무료 Faradays Law 계산기를 사용해 보세요
직접 시도해 보세요 →