Question

По проводнику сопротивлением 20Ом за 5 мин прошло количество электричества 300Кл.Вычислить работу тока за это время.

Answer 1

I=q/t

I=300/300=1 А

U=I*R

U=1*20=20 В

A=I*U*t

A=1*20*300=6000 Дж

Answer 2

Calculation of Work Done by Electric Current

To calculate the work done by an electric current, we need to use the formula:

Work (W) = Current (I) × Voltage (V) × Time (t)

In this case, we are given the resistance (R) of the conductor as 20 Ω and the amount of charge (Q) that passed through the conductor as 300 kC (kiloCoulombs) in 5 minutes.

To find the current (I), we can use Ohm's Law:

Current (I) = Voltage (V) / Resistance (R)

Since the voltage is not given, we need to find it using the formula:

Voltage (V) = Current (I) × Resistance (R)

Let's calculate the current and voltage first:

Current (I) = Voltage (V) / Resistance (R)

Using Ohm's Law, we can substitute the values:

Current (I) = Voltage (V) / 20 Ω

Now, we need to find the voltage:

Voltage (V) = Current (I) × Resistance (R)

Substituting the value of the current:

Voltage (V) = (Current (I)) × 20 Ω

To calculate the work done by the current, we can use the formula:

Work (W) = Current (I) × Voltage (V) × Time (t)

Substituting the values of current, voltage, and time:

Work (W) = (Current (I)) × (Voltage (V)) × 5 minutes

Now, let's calculate the current, voltage, and work done.

Calculation:

Given: Resistance (R) = 20 Ω Amount of charge (Q) = 300 kC Time (t) = 5 minutes

1. Calculate the current (I): - Using Ohm's Law: Current (I) = Voltage (V) / Resistance (R) - Substituting the value of resistance: Current (I) = Voltage (V) / 20 Ω 2. Calculate the voltage (V): - Using Ohm's Law: Voltage (V) = Current (I) × Resistance (R) - Substituting the value of resistance: Voltage (V) = (Current (I)) × 20 Ω 3. Calculate the work done (W): - Using the formula: Work (W) = Current (I) × Voltage (V) × Time (t) - Substituting the values of current, voltage, and time: Work (W) = (Current (I)) × (Voltage (V)) × 5 minutes Now, let's calculate the values.

1. Calculate the current (I): - Current (I) = Voltage (V) / 20 Ω - Since the voltage is not given, we cannot calculate the current without additional information.

Therefore, without the voltage value, we cannot calculate the current, and subsequently, we cannot calculate the work done by the current.

Please provide the voltage value or any additional information to proceed with the calculation.