We wish to measure current in the branch of a circuit. Assume that the circuit contains no current sources. When a real ammeter with nonzero input impedance is used properly to measure the branch current, the measured current will be
A. more than the actual current (i.e., more than the current that was in the branch before the ammeter was inserted)
B. exactly equal to the actual current (i.e., exactly equal to the current that was in the branch before the ammeter was inserted), regardless of what is driving the circuit
C. less than the actual current (i.e., less than the current that was in the branch before the ammeter was inserted)
Answer: C
You might also like to view...
The first animals to be domesticated were ____________________
Fill in the blank(s) with correct word
Milk is drawn from the cow to a holding tank where it is rapidly cooled, then frozen.
Answer the following statement true (T) or false (F)
A cosine x(t) and a sine signal y(t) of the same frequency are added to form a composite signal z(t). The signal z(t) is then sampled at exactly its Nyquist rate with the usual assumption that a sample occurs at time t = 0. Which of the two signals x(t) or y(t) would, if sampled by itself, produce exactly the same set of samples?
What will be an ideal response?
With programmable logic controllers, each line of logic must end with a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).