Question

An electromagnet is strong enough to lift 200 kg of mass. If you double the number of turns of wire around the core and triple the current, how much will it be able to lift?

Answer 1

1200 kg is the answer

Step-by-step explanation:

Magnetic field is proportional to NIA.

N is the number of turns, I is the current and A is the area

You see N=2n, I = 3 i. Therefore, it will 6 times stronger

200*6= 1200 kg. It can lift now is 1200 kg.

Hope this helps.

Answer 2

Magnetic field is proportional to NIA.

N is the number of turns, I is the current and A is the area

You see N=2n, I = 3 i. Therefore, it will 6 times stronger

200*6= 1200 kg. It can lift now is 1200 kg.