VPA a) What is the reading on voltage probe VPA when the magnet is held motionle

Question

VPA a) What is the reading on voltage probe VPA when the magnet is held motionless outside the coil along the axis as shown in the figure? O Steady negative O Negative peak followed positive peak Positive peak followed by negative peak O Steady positive O Negative peak Positive peak Zero b) What is the reading on voltage probe VPA when the magnet is held motionless inside the coil along the axis as shown in the figure? Steady negative O Negative peak followed by positive peak Negative peak Positive peak Zero O Steady positive Positive peak followed by negative peak c) What is the reading on voltage probe VPA when the magnet is moved quickly from outside the coil to inside the coil and then back out? Indicate ALL answers that may be correct Steady positive Positive peak positive peak followed by negative peak zero Negative peak Steady negative Negative peak followed by positive peak

Explanation / Answer

Part C)

Correct option is - Positive peak followed by negative peak

Explanation - Since south pole of magnet points towards the coil and is moving inside so the flux through the coil increases in downward direction to oppose this flux an EMF is induced in the coil such that the current produced decreses the flux in upward direction ,i.e., increses flux in downward direction .so current will be in clockwise direction and thus first positive peak will be there then negative peak is observed.

Related Questions

Navigate

• Browse (All)
• Browse V
• Subjects

---

---

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