Problem: A coil with 50 turns and a radius of 7 cm is placed in a 5 mT external magnetic field, ortiented such that the field is directed straight through the coil. The coil begins to rotate, while simultaneously the magnetic field strength begins to decrease. If the coil rotates until its normal is at a 60° angle from the magnetic field in 2s, and the magnetic field strength drops to 10 mT in the same 2s, what is the average emf induced in the coil during this process?

FREE Expert Solution
97% (498 ratings)
Problem Details

A coil with 50 turns and a radius of 7 cm is placed in a 5 mT external magnetic field, ortiented such that the field is directed straight through the coil. The coil begins to rotate, while simultaneously the magnetic field strength begins to decrease. If the coil rotates until its normal is at a 60° angle from the magnetic field in 2s, and the magnetic field strength drops to 10 mT in the same 2s, what is the average emf induced in the coil during this process?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Faraday's Law concept. You can view video lessons to learn Faraday's Law Or if you need more Faraday's Law practice, you can also practice Faraday's Law practice problems .

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Meenakshi's class at BU.