Blog

Extra Credit:  You will earn full credit for any answer, provided you’ve answered both parts of the question. Did you feel this exam was fair? Why or why not? 

Protections for pre-existing conditions can raise premiums because insurers cannot deny coverage to sick individuals. To balance this risk, policymakers added the ________ so healthy individuals would still participate in the insurance market.

The magnetic field is uniform over each face of the box in the diagram. With 7.8 T and 2.6 T, the magnetic field at the front surface marked with a ‘?’ is given by:

An L-C circuit has an inductance of 0.087 H and a capacitance of 0.364 nF . During the current oscillations, the maximum current in the inductor is 5.57 A. What is the maximum energy stored in the capacitor at any time during the current oscillations?

An L-C circuit has an inductance of 0.277 H and a capacitance of 0.690 nF . During the current oscillations, the maximum current in the inductor is 8.55 A. What is the maximum energy stored in the capacitor at any time during the current oscillations?

The magnetic field is uniform over each face of the box in the figure. With 8.9 T and 2.6 T, the magnetic field at the front surface marked with a ‘?’ is given by:

In the beginning of “Dr. Heidegger’s Experiment,” the characters are alike in every way except one. It cannot be said that they —   

A 40 mH inductor is connected across an AC source that produces a peak voltage of 8.5 V. Which input frequency produces a larger current amplitude: $f_1=$$4 \times 10^{2}$ Hz or $f_2=$$3 \times 10^{5}$ Hz?

A 30 mH inductor is connected across an AC source that produces a peak voltage of 7.0 V. Which input frequency produces a larger current amplitude: $f_1=$$4 \times 10^{2}$ Hz or $f_2=$$2 \times 10^{5}$ Hz?

A 70 mH inductor is connected across an AC source that produces a peak voltage of 9.2 V. Which input frequency produces a larger current amplitude: $f_1=$$3 \times 10^{2}$ Hz or $f_2=$$4 \times 10^{5}$ Hz?