What voltage is required to run a 45 W light bulb if the current is 0.5 A?
U=P/I = 45/0.5 =90 V.
To find the voltage required to run a 45 W light bulb, we can use the formula:
Power (Watts) = Voltage (Volts) × Current (Amperes)
Given that the power is 45 W and the current is 0.5 A, we can rearrange the formula to solve for voltage:
Voltage (Volts) = Power (Watts) / Current (Amperes)
Plugging in the values, we get:
Voltage (Volts) = 45 W / 0.5 A = 90 Volts
Therefore, the voltage required to run a 45 W light bulb with a current of 0.5 A is 90 Volts.
To determine the voltage required, we can use the formula:
Power (P) = Voltage (V) * Current (I)
Given that the power (P) is 45 W and the current (I) is 0.5 A, we can rearrange the formula to solve for the voltage (V):
V = P / I
Now, let's substitute the given values into the formula:
V = 45 W / 0.5 A
Dividing 45 W by 0.5 A gives us:
V = 90 V
Therefore, the voltage required to run the 45 W light bulb with a current of 0.5 A is 90 volts.