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Unformatted text preview: ces and Torque ∑⃗
⁄ |⃗ | Time Constant:
Energy, Momentum and Power ⃗
⃗ Conductivity: ⃗ ∫ ⃗
⃗ Constant angular motion:
Constants: ⃗ ⃗ ⃗
⁄ ⃗ ⁄
| ⃗| ⃗ Physics 1202W.100 – Practice Quiz #3
ID: November 9th, 2012
TA (circle 1): Michael Janas Cole Grasse
Tim Peterson Yusuf Buyukdag Problem #1 (25 pts)
You are helping to test a device to measure blood flow through arteries during heart surgery. Small wires are
attached to opposite sides of the artery and connected to a voltmeter which has a sensitivity of 2 µV (microvolt).
Helmholtz coils (two coils of current with the same radii) are used to generate a constant magnetic field at the
artery which is perpendicular to both the blood flow and the vector connecting the attachment points for the
voltmeter. What is the smallest blood flow that the device can measure for an artery with a diameter of 2.5 mm
in a constant magnetic field of 0.4 T? Physics 1202W.100 – Practice Quiz #3 November 9th, 2012
TA (circle 1): Michael Janas Cole Grasse Name: Barun Dhar ID: Tim Peterson Yusuf Buyukdag Problem #2 (25 pts)
You have been asked to evaluate the design of a new implantable defibrillator to regulate the beating of the
heart. The circuit is given below. When a problem is detected in the heart, represented by the 500 Ω resistor, the
switch is closed and the capacitor discharges delivering a current to the...
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This test prep was uploaded on 03/13/2014 for the course PHYS 1201W taught by Professor Kennethheller during the Fall '13 term at Minnesota.
- Fall '13