- #1
Kyoma
- 97
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My classmates had an argument.
There are 2 trolleys; one of them (A) is attached to a solenoid wrapped around a soft-iron core, which is connected to a d.c. circuit. There's another trolley (B) which is attached to a solenoid wrapped around a soft-iron core but it is connected to a load resistor.
Apparently, according to the right-hand grip rule, there is a north-pole formed on the right side of (A). When (A) is pushed towards the right, towards (B), what is the pole of the left side of (B)? The north pole or the south pole?
My friend said it was the south pole, since the electromagnet in (A) would induce a south pole on the left side of (B). But, the other said it was the north pole, according to Lenz's laws.
So, which is which?
There are 2 trolleys; one of them (A) is attached to a solenoid wrapped around a soft-iron core, which is connected to a d.c. circuit. There's another trolley (B) which is attached to a solenoid wrapped around a soft-iron core but it is connected to a load resistor.
Apparently, according to the right-hand grip rule, there is a north-pole formed on the right side of (A). When (A) is pushed towards the right, towards (B), what is the pole of the left side of (B)? The north pole or the south pole?
My friend said it was the south pole, since the electromagnet in (A) would induce a south pole on the left side of (B). But, the other said it was the north pole, according to Lenz's laws.
So, which is which?