Answer
0.135 W
Work Step by Step
Power (P), Voltage (V) and Resistance (R) are connected by the formula,
P=$\frac{V^{2}}{R}$
Making R the subject of this formula for the first set of conditions,
R=$\frac{V^{2}}{P}$
Substituting the values V=3 Volts and P=0.540 Watts in this formula, R is found to be 16.66 $\Omega$
Now, we will use this value of R and V=1.5 volts outlined in the first set of conditions to find P.
Using the formula, P=$\frac{V^{2}}{R}$
P is found to be 0.135 watts
