Physics 2B
Lab Practical Quiz: Use of a Multimeter
"The Seeing Eye Dog of Electricity"
Name:________________
This quiz is to be taken before your regularly scheduled lab day for the week of Nov. 13th. It is
late if taken on due date. You may practice anytime.
Examiner will look for following techniques…
__Taking care during meter connection (power supply at minimum or disconnected) .
__Turning off meter when finished. No function changes while meter is in circuit.
__Proper placement of meter in circuit (voltmeter in parallel with load, ammeter in series
with load).
__Proper use of meter as ohmmeter (disconnect R from circuit).
__Proper position of AC/DC mode switches.
CARRY OUT THE FOLLOWING STEPS IN THE PRESENCE OF INSTRUCTOR OR
DESIGNATED EXAMINER (Mrs. Shang or Dr. Harris)
The symbol "O" will be checked off by examiner when correctly completed.
1. Wire one lamp to one battery. After estimating maximum current in circuit (show
calculation below assuming that a lamp has a resistance greater than 3.0 ohms), correctly
measure current at a point in circuit as directed.
Display reading _____, give unit_____.
2. Measure the resistance of an element given to you by examiner:
Display reading _____, give unit _____.
1
Any evidence that you are trying to learn how to use the
meter while taking quiz will terminate quiz.
Estimate of maximum current...
I = V/R = ( )/( ) = ___________ A = ___________ mA
