A 12V car battery delivers 20A for 15 minutes before it is exhausted. The energy contained in the battery equals ____ W-hr.
Fill in the blank(s) with the appropriate word(s).
E = Power x time = V x I x t = 12V x 20A x 0.25 hr = 60 W-hr.
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When the coil of a solenoid is energized, a magnetic field produces a force that acts on the solenoid plunger. This force is called ____________________.
Fill in the blank(s) with the appropriate word(s).
Glass blocks can be used for load-bearing or nonload-bearing walls.
Answer the following statement true (T) or false (F)
Late 19th-century farmers believed that their difficulties stemmed primarily from
A. low tariff rates. B. overproduction. C. a deflated currency and low prices for their agricultural goods. D. immigration laws. E. insufficient agricultural exports.
Obtain the Norton equivalent at terminals a-b of the circuit in Fig. 4.121.
 FIGURE 1.png)