Question

Сопротивление вольтметра равно 2,4 кОм. Какая сила тока проходит через вольтметр, если он показывает напряжение 240 В ?

Answer 1

Calculation of Current through Voltmeter

To calculate the current passing through a voltmeter, we need to use Ohm's Law, which states that the current (I) flowing through a conductor is equal to the voltage (V) across the conductor divided by the resistance (R) of the conductor.

In this case, the resistance of the voltmeter is given as 2.4 kΩ (kilohms), and the voltage across the voltmeter is given as 240 V.

Using Ohm's Law, we can calculate the current (I) as follows:

I = V / R

Substituting the given values:

I = 240 V / 2.4 kΩ

To perform the calculation, we need to convert the resistance from kilohms to ohms:

2.4 kΩ = 2.4 * 1000 Ω = 2400 Ω

Now we can substitute the values into the equation:

I = 240 V / 2400 Ω

Simplifying the equation:

I = 0.1 A

Therefore, the current passing through the voltmeter is 0.1 A.