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**1. Four conductors of equal length are each moved through a uniform magnetic field moving away from us (into the page) in different directions and with different speeds, as shown in my attached diagram. While the four conductors are being moved through the field, in which conductor will the largest potential difference be induced?**

A. Conductor A

B. Conductor B

C. Conductor C

D. Conductor D

A. Conductor A

B. Conductor B

C. Conductor C

D. Conductor D

In summary:

Conductor A is moving up, v=1.0 m/s

Conductor B is moving right, v=2.0 m/s

Conductor C is moving left, v=4.0 m/s

Conductor D is moving down, v=3.0 m/s

**2. Homework Equations**

ε=Blv

**3. The Attempt at a Solution**

Using ε=Blv, I know that the magnetic field (B) and the length of the conductors (l) all have to be constant. So I know that the only variable changing is the velocity (v).

Since Conductor C is moving the fastest (v=4.0 m/s) and has the largest value, it would result in the greatest ε.

However, the answer is Conductor D (v=3.0 m/s). I don't understand why.