Given these two circuits (inductor is ideal zero internal resistance) and batter

Question

Given these two circuits (inductor is ideal zero internal resistance) and batteries are same and resistors are the same.

1) the potential of each circuit are increased at the same rate. What happens to the currents of each circuit. (comparing the currents of each 'just the relative')
i left (greater than less than equal to) i right

2) potential left at a constant potential for a long time.

i left (greater than less than equal to) i right

3) potential decreased and the same rate.

i left (greater than less than equal to) i right

PLEASE CHECK MY REASONING (brief: we know inductors opposed changes ... etc)

1) I left greater than I right... since the inductor... back emf etc opposes change in potential and change in current.

2) after a long time the currents will be the same... inductor acts as a wire with no changes..

3) I left less than I right.... Since the current in the left will decrease immediately while the right will not...

Thanks for looking this over... Of course the explanation can be way more in depth just want to double check my answers if you want to elaborate more that would be extremely helpful.

Explanation / Answer

ya first two reasonings are perfectly alright, third one is also correct but you should also notice that when current is decreasin di/dt is negatice so voltage across inductor is negative,so more voltage appears across resistor than V, so current will try to increase

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.