A 50 Ampere-hour battery can supply a current of 50 A for 1 hour, 25 A for 2 hour, and so on. Then the total energy stored in the 12V-50 Ampere-hour battery is:

Explanation

The energy stored in a battery can be calculated using the formula: Energy (Wh) = Voltage (V) × Capacity (Ah). In this case, the battery has a voltage of 12V and a capacity of 50Ah. Therefore, the total energy stored is:Energy = 12V × 50Ah = 600Wh.Option A (600 J) is incorrect because it uses joules instead of watt-hours as the unit of energy for this context. Option C is misleading because, although the time affects how long the energy can be drawn, it does not change the total stored energy. Option D (3.6 × 104 J) is also incorrect as it represents a much lower value, equivalent to 10 Wh, which does not reflect the actual energy capacity of the battery. Thus, the correct answer is Option B (600 Wh).