An unknown resistor is wired in series and an ammeter and a voltmeter are placed in parallel across both the resistor and the ammeter. This network is then placed across a battery
If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained A) is the true resistance.
B) is greater than the true resistance.
C) is less than the true resistance.
D) could be anything. It depends on other factors.
B
You might also like to view...
The ________ theory was based on the assumption that the universe was eternal and unchanging
a. inflationary b. accelerating c. steady-state d. big bang
When a boulder and a pebble are dropped, why does the pebble pick up speed as quickly as the boulder, even though less gravity acts on it? In other words, why do both accelerate equally?
What will be an ideal response?
A charged particle (mass = M, charge = Q > 0) moves in a region of space where the magnetic field has a constant magnitude of B and a downward direction. What is the magnetic force on the particle at an instant when it is moving horizontally toward the north with speed V?
a. QVB toward the east b. Zero c. QVB toward the west d. QVB upward e. QVB toward the south
The RR Lyrae stars all have periods of:
A) less than a second. B) several minutes. C) several hours. D) several days. E) several weeks.