With a current in the electric circuit of 0.3 A, the resistance of the lamp is 10 Ohm. What is the power of the electric current released on the filament of the lamp?
To calculate the current power on the filament of the lamp used, we apply the formula: P = I ^ 2 * R.
Values of variables: I – current in the circuit (I = 0.3 A); R is the resistance of the lamp (R = 10 ohms).
Let’s perform the calculation: P = I ^ 2 * R = 0.3 ^ 2 * 10 = 0.9 W.
Answer: The power of the current on the filament of the lamp used is 0.9 W.
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