Question

При силе тока 0,5 А в нити лампы мощность тока равна 6 Вт. Чему равно напряжение на лампе? Дано: Найти: Решение:

Answer 1

Calculation of Voltage on the Lamp

To calculate the voltage on the lamp, we can use the formula:

Power (P) = Current (I) x Voltage (V)

Given that the current (I) is 0.5 A and the power (P) is 6 W, we can rearrange the formula to solve for voltage (V):

V = P / I

Substituting the given values:

V = 6 W / 0.5 A

Calculating the result:

V = 12 V

Therefore, the voltage on the lamp is 12 volts.

Explanation

When an electric current flows through a lamp, it converts electrical energy into light and heat. The power of the lamp represents the rate at which it consumes electrical energy. In this case, the power of the lamp is given as 6 watts.

The current flowing through the lamp is 0.5 amperes. Amperes (A) is the unit of electric current, and it measures the rate of flow of electric charge. The current represents the amount of charge passing through the lamp per unit of time.

Using the formula P = I * V, we can calculate the voltage (V) on the lamp. By rearranging the formula, we find that V = P / I. Substituting the given values of power (P) and current (I), we can calculate the voltage.

The result shows that the voltage on the lamp is 12 volts. This means that the lamp requires a voltage of 12 volts to operate properly and produce the specified power output.

Please note that the calculation assumes an ideal situation and does not take into account factors such as resistance or variations in the lamp's characteristics.