Electric power: practical problems The resistance of a light bulb L is 10 Ω, which can normally light up under the voltage of 6V. Now connect the light bulb to 9V constant voltage power supply. In order to make the light bulb normally light up, connect a suitable resistance R in the circuit. How do you think to connect the resistance? What is the resistance value of the resistance R? The resistance of a light bulb L is 10 Ω, which can normally light up under the voltage of 6V, Now connect the bulb to 9V constant voltage power supply. In order to make the bulb shine normally, connect a suitable resistance R in the circuit. How do you think to connect the resistance? What is the resistance value of the resistance R?

Electric power: practical problems The resistance of a light bulb L is 10 Ω, which can normally light up under the voltage of 6V. Now connect the light bulb to 9V constant voltage power supply. In order to make the light bulb normally light up, connect a suitable resistance R in the circuit. How do you think to connect the resistance? What is the resistance value of the resistance R? The resistance of a light bulb L is 10 Ω, which can normally light up under the voltage of 6V, Now connect the bulb to 9V constant voltage power supply. In order to make the bulb shine normally, connect a suitable resistance R in the circuit. How do you think to connect the resistance? What is the resistance value of the resistance R?

Series R = 5 Ω

Calculation formula of torque