A square loop of wire is pulled upward out of the space between the poles of a m

Question

A square loop of wire is pulled upward out of the space between the poles of a magnet, as shown in the figure. As this is done, the current induced in this loop, as viewed from the N pole of the magnet, will be directed A)counterclockwise B) zero C) clockwise The two solenoids in the figure are coaxial and fairly close to each other. While the resistance of the variable resistor in the left-hand solenoid is increased at a constant rate (so both current and magnetic field decreased), the induced current through the resistor R will A) be zero because the rate is constant B) flow from b to a C) flow from a to b The slide wire on the variable resistor in the figure is moved steadily to the left (the resistance is decreasing and current increasing). While this is being done, the current induced in the small circuit A is directed A) zero B) clockwise C) counterclockwise

Explanation / Answer

1) the direction of the current can be calculated right hand thumb rule. the direction of magnetic field is from north and south..so the direction of current

c) clockwise

2) the induced current through the resistor cant be calculated right hand thumb rule

b) flow from b to a

3) using right hand palm rule

c) counterclockwise

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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