The image shows that an electromagnet made with a 1.5-volt battery (on the left). How would the strength of an electromagnet be affected if you replaced its 1.5-volt battery with a 9-volt battery (shown on the right) while using the same nail and coil?

A.
The magnetic field strength would increase.

B.
The magnetic field strength would decrease.

C.
The change would not affect the magnetic field.

D.
The magnetic field would change direction more frequently.

Question

The image shows that an electromagnet made with a 1.5-volt battery (on the left). How would the strength of an electromagnet be affected if you replaced its 1.5-volt battery with a 9-volt battery (shown on the right) while using the same nail and coil?
  

 
 A.
The magnetic field strength would increase.
 
 B.
The magnetic field strength would decrease.
 
 C.
The change would not affect the magnetic field.
 
 D.
The magnetic field would change direction more frequently.

anonymous · Answer

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anonymous · Answer

if you replace it with something with much higher strength, the strength would increase a lot. the electromagnet is going to use as much strength as it can.

anonymous · Answer

Increasing the electric potential difference will increase the current. This would caluse the magnetic field strength to increase as well.