Answer :
Final answer:
The average current drawn by the portable television is 0.5 A, and the energy expended by the battery is 129600 joules.
Explanation:
To determine the average current drawn by the portable television over a period of 6 hours with a 12 V, 3 Ah battery, we use the formula for current (I), which is the charge (Q) divided by time (t).
I = Q / t = 3 Ah / 6 h = 0.5 A
Thus, the average current drawn is 0.5 A.
To calculate the energy expended by the battery, we use the formula E = V \\cdot Q, where E is energy in joules (J), V is voltage in volts (V), and Q is charge in ampere-hours (Ah).
E = 12 V \\cdot 3 Ah = 12 V \\cdot 3 A \\cdot 3600 s = 129600 J
Therefore, the energy expended by the battery is 129600 joules.
