On the circuit below, what is the current measured by the ammeter? Each resistor is 50 ohms, and the battery is 50 volts.
A. 0.15 amperes
B. 0.21 amperes
C. 0.27 amperes
D. 0.36 amperes

C. 0.27 amperes.

Step-by-step explanation:

is the current through the ammeter, and is the current through the bigger loop.

Going around the circuit loop gives

and going around the second loop gives

.

Since

,

putting that into equation (2) we get:

Combining equations (1) and (3) we get:

putting this into equation (1) we get:

putting in and we solve for to get:

Equation (4) now gives

which is the current the ammeter will measure and it is give by choice C.

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

seems like d

step-by-step explanation: