$\overline{){\mathbf{a}}{\mathbf{=}}\frac{\mathbf{q}\mathbf{r}}{\mathbf{2}\mathbf{m}}{\mathbf{\left|}}\frac{\mathbf{d}\mathbf{B}}{\mathbf{d}\mathbf{t}}{\mathbf{\right|}}}$

Here, q = 1.6 × 10^{-19} C, m = 1.67 × 10^{-27} kg, $\mathbf{\left|}\frac{\mathbf{d}\mathbf{B}}{\mathbf{d}\mathbf{t}}\mathbf{\right|}$ = 0.7 T/s, and r = $\mathbf{1}\mathbf{.}\mathbf{0}\mathbf{}\mathbf{cm}\mathbf{\times}\frac{\mathbf{1}\mathbf{m}}{\mathbf{100}\mathbf{}\mathbf{cm}}$ = 1 × 10^{-2} m.

The magnetic field in the figure is decreasing at the rate of 0.7 T/s.

(a) What is the magnitude of the acceleration of a proton at rest at point **a**? Express your answer as an integer and include the appropriate units.

(b) What is the direction of the acceleration of a proton at rest at point **a**?

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 Lenz's Law concept. You can view video lessons to learn Lenz's Law. Or if you need more Lenz's Law practice, you can also practice Lenz's Law practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Spike's class at UW-MADISON.