Difference between motor effect and electromagnetic induction?Watch
EM induction causes a current to occur when a force is applied
Look at the question: is there a battery motor effect
if there are obvious force arrows induction
If they have actually drawn out a motor/generator then the only way to tell is by whether the question says a current is flowing or whether it says steam/whatever is pushing around the loop. Someone will have to back me up on this, but I think DC motors have split rings, while generators have slip rings.
Finally, its horrendously unlikely that this would be useful in an exam, but you could put in a really sensitive ammeter and work out whether the current flowing is AC/DC.
Someone will have to back me up on this, but I think DC motors have split rings, while generators have slip rings..
If you have a current and a magnetic field, but no external movement, it's the motor effect.
Think about what you're missing out from the question, and use that to decide which one it is.
Posted from TSR Mobile
The motor effect is the effect whereby a wire or coil with a current in and placed in a magnetic field experiences a force.
Electromagnetic induction (the generator or dynamo effect) is the effect whereby a wire or coil moving in a magnetic field generates an emf.