Explain Electromagnetic Induction
Physics · Flashcards · Recall
PHYSICS · FLASHCARDS
Card 1
of 21
0 got it
0 to review
Current
Got it
Still learning
Not seen
QUESTION
What experimental observation shows that faster motion induces a larger emf?
QUESTION
Identify the meaning of the minus sign in
ε
=
−
N
Δ
Φ
Δ
t
\varepsilon=-N\frac{\Delta\Phi}{\Delta t}
ε
=
−
N
Δ
t
ΔΦ
.
QUESTION
What is the direction rule for induced current when the magnetic flux increases?
Tap to flip before you grade
ANSWER
The induced field opposes the increase in flux. Lenz's law: induced current creates field opposing flux increase.
Swipe → got it · swipe ← still learning
Got it
Still learning
Flip Card
Previous card
Next card