An unknown resistor is wired in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery
If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained A)
is less than the true resistance.
B)
is greater than the true resistance.
C)
is the true resistance.
D)
could be any of the given answers. It depends on other factors.
A
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Given 1 angstrom unit = 10-10 m and 1 fermi = 10-15 m , what is the relationship between these units?
A) 1 angstrom = 10+5 fermi B) 1 angstrom = 10-5 fermi C) 1 angstrom = 10-25 fermi D) 1 angstrom = 10+25 fermi E) none of the given answers
The spiral arms are blue from the presence of Population ________ stars in them
Fill in the blank(s) with correct word
Organic molecules are
A) carbon-based. B) silicon-based. C) living cells. D) found only on Earth. E) not found outside our solar system.
A proton is accelerated from rest through 500. V. It enters a magnetic field of 0.300 T oriented perpendicular to its direction of motion. Determine:
(a) the radius of the path it follows. (b) the frequency with which it moves around this path.