Please choose the right answer for Question 8 and explain why it is the right an

Question

Please choose the right answer for Question 8 and explain why it is the right answer.

A resistor, inductor, switch and battery are in series. Originally the switch the then closed, allowing current to flow. Before the system reaches a steady state (consian potential across the resistor and the potential across the inductor are Two long parallel wires shown below initially are a distance d apart and each has a current i directed into the page. The force per unit length on each wire has magnitude F0. The direction of the force on the left-hand wire due to the current in the right-hand wire is to the right to the left upward in the plane of the pagedownward in the plane of the page into the page The wires are moved apart to a separation 4d and the current in each wire is increased to 4i. The new force per unit length on each wire is

Explanation / Answer

Opion (B) is correct

When switch is ON, the battery tries to push the current through the inductor but the inductor opposes the flow, so the pd across the inductor becomes equal to voltage across battery but in opposite direction (induced volatage). but the induced voltage cannot combat the voltage source with its own energy supply and the induced voltage across the inductor starts to decrease.
The current in the circute slowly increases thats why the voltage across the resistor increases

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---