The amount of energy dissipated by a 100-W bulb in a common parallel circuit ____________________.
a. All of these.
b. None of these.
c. is normally 100 joules per second.
depends on the voltage supplied to the lamp.
d. depends on how long the bulb is lit.
It is 100 Joules per second or watts if at specified voltage.
Since it is 100 joules per second, the number of joules dissipated is proportional to the number of seconds it is on.
If the voltage is reduced ("brownout"), it will not run at 100 Watts or Joules per second and less energy will be dissipated per unit time.
c and d. I can't say "all of these" because b is wrong. It depends upon what is meant by "these".
To determine the amount of energy dissipated by a 100-W bulb in a common parallel circuit, we need to understand the relationship between power, time, and energy.
The power of an electrical device is given by the formula:
Power (P) = Voltage (V) × Current (I)
In this case, the power of the 100-W bulb is provided as 100 Watts. However, the power consumed by the bulb varies depending on the voltage supplied to the lamp. Therefore, option (d) is correct.
To calculate the amount of energy dissipated, we can use the formula:
Energy (E) = Power (P) × Time (T)
Since the power is given as 100 Watts, the energy dissipated by the bulb depends on how long the bulb is lit. Therefore, option (d) is again the correct answer.
In summary, the amount of energy dissipated by a 100-W bulb in a common parallel circuit depends on how long the bulb is lit, so the correct answer is option (d): depends on how long the bulb is lit.