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.

Trades & Technology

You might also like to view...

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).

Trades & Technology

Glass blocks can be used for load-bearing or nonload-bearing walls.

Answer the following statement true (T) or false (F)

Trades & Technology

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.

Trades & Technology

Obtain the Norton equivalent at terminals a-b of the circuit in Fig. 4.121.

Trades & Technology