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brenfox
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Homework Statement
Determine the power generated by a voltage V = 240∠15° volts driving a current I = 12 ∠75°
Homework Equations
P=VIcos(ø-ø)
brenfox said:Not sure. After inputting cos 60 it came out with 0.58. I am of the understanding cosine 60 equals half. so 240x12x0.5 does equal 1440 Watts . But cosine 60 equates to 0.58 in my calculator.
The formula for calculating power is P = V x I, where P is power, V is voltage, and I is current. In this equation, voltage is measured in volts and current is measured in amps.
Using the formula P = V x I, we can calculate the power generated by a 240V and 12A circuit to be 2,880 watts.
An increase in voltage will result in an increase in power generation, as long as the current remains constant. This is because voltage and power have a direct relationship, meaning that as voltage increases, so does power.
Yes, power generation can be affected by changing the current. As mentioned before, power is directly proportional to current, so an increase in current will result in an increase in power generation.
Power is measured in watts (W) and is represented by the symbol P. It can be measured using a wattmeter or by calculating it using the formula P = V x I.