The statement 'The higher the voltage of a battery in the transmitter, the longer the transmitter will function properly' is true or false?

• A. It depends on battery capacity
• B. Not enough information
• C. True
• D. False

Answer: (D)

The key idea is that how long a transmitter runs on a battery depends on the total energy stored in the battery and how much energy the transmitter uses over time, not just the voltage. The energy available is measured in watt-hours (Wh), which roughly equals the battery voltage multiplied by its capacity in amp-hours (Ah). The transmitter’s runtime is then this energy divided by the power it draws. So simply having a higher voltage does not guarantee a longer run time; it’s the combination of voltage, capacity, and the actual power draw (and the device’s ability to operate safely at that voltage) that matters.

In practice, two batteries with the same energy content can yield similar runtimes even with different voltages, provided the device can operate within the required voltage range and the regulator stays efficient. If a higher voltage is outside what the transmitter is designed to handle, it could reduce efficiency or damage the device, offering no real runtime advantage.

So, the statement is false because longer operation is not determined by higher voltage alone. It hinges on the battery’s energy capacity and the transmitter’s power usage within its specified voltage range.