Is true or false- a lamp functioning at peak voltage (AC) will glow with the same brightness when connected to a battery of the same voltage (DC)? PLZ DNT 4GT 2 XPLAIN DA ANSWER
The answer is false. When a lamp is functioning at peak voltage in an alternating current (AC) circuit, it will not glow with the same brightness when connected to a direct current (DC) battery of the same voltage. Let's explain why that is the case:
AC and DC are two different types of electrical currents. In an AC circuit, the current periodically changes its direction, while in a DC circuit, the current flows in only one direction.
Lamps are designed to work with AC circuits, where the current regularly reverses its direction. The filament in the lamp has a certain resistance, and the brightness of the lamp depends on the current passing through it. In an AC circuit, the voltage repeatedly changes polarity, causing the current to periodically vary its direction. This variation helps maintain the filament's temperature and brightness relatively constant.
On the other hand, when you connect the lamp to a DC battery, the current flows in only one direction without any reversal. As a result, the filament in the lamp gets hotter and may burn out faster. The lamp will likely glow brighter initially until the filament reaches a high temperature, but it will not have the same level of brightness as in an AC circuit.
Therefore, a lamp functioning at peak voltage in an AC circuit will not glow with the same brightness when connected to a battery of the same voltage in a DC circuit.