!The power dissipated by a 60W bulb in a 20V source can be calculated using the formula P = V^2/R, where P is power in watts, V is voltage in volts, and R is resistance in ohms. In this case, the resistance of the bulb is 20V/60W = 0.33 ohms. Plugging this value into the formula, we get P = (20V)^2/0.33 ohms = 120W. Therefore, the power dissipated by the bulb is 120 watts.
The power dissipated by a 60W bulb is directly proportional to the voltage of the source. This means that as the voltage increases, the power dissipated by the bulb also increases. Conversely, if the voltage decreases, the power dissipated by the bulb will also decrease.
The resistance of a 60W bulb in a 20V source can be calculated using the formula R = V^2/P, where R is resistance in ohms, V is voltage in volts, and P is power in watts. In this case, the power of the bulb is 60 watts and the voltage of the source is 20V. Plugging these values into the formula, we get R = (20V)^2/60 watts = 0.33 ohms. Therefore, the resistance of the bulb is 0.33 ohms.
The power dissipated by a 60W bulb remains constant over time as long as the voltage and resistance of the bulb remain constant. However, over time, the resistance of the bulb may change due to factors such as temperature or wear and tear, which can affect the power dissipated by the bulb.
The power dissipated by a 60W bulb can be affected by factors such as the voltage and resistance of the bulb, as well as external factors such as temperature and wear and tear. Changes in these factors can result in a change in the power dissipated by the bulb. Additionally, using a different type of bulb with a different wattage or a different voltage source can also affect the power dissipated by the bulb.