pq04ans - a) Is – positive, negative or zero? (Circle the...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
PHYS-1200 PHYSICS II FALL 2004 Post Quiz 4 Name____ ANSWERS _______________________ 1. A certain material carries 1.0 amp of current when the voltage across it is 2.0 V, 1.5 amp of current when the voltage across it is 3.0 V, and 2.5 amp of current when the voltage across it is 5.0 V. Is the material ohmic? (Circle the correct answer.) Yes No Cannot determine from the information given 2. Recall, ρ 0 = 0 α ( T T 0 ), where 0 is the resistivity at T 0 = 293 K. You place a resistor in a cup of liquid nitrogen. When you do this, the resistance increases.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: a) Is – positive, negative or zero? (Circle the correct answer.) Positive Negative Zero Not enough information b) Is T – T positive, negative or zero? (Circle the correct answer.) Positive Negative Zero Not enough information c) Is positive, negative or zero? (Circle the correct answer.) Positive Negative Zero Not enough information d) The resistor is made of what type of material? (Circle the correct answer.) Metal Semiconductor Insulator...
View Full Document

This note was uploaded on 04/09/2008 for the course PHYS 1200 taught by Professor Stoler during the Spring '06 term at Rensselaer Polytechnic Institute.

Ask a homework question - tutors are online