A voltmeter with a resistance of 10,000 ohms is connected across a circuit that has a voltage of 50 V. What is the current flowing through the voltmeter?
5 mA
We can solve this problem using Ohm's Law, which states that the current (I) flowing through a conductor is directly proportional to the voltage (V) across it and inversely proportional to its resistance (R). The formula is:
\(I = \frac{V}{R}\)
In this case, we are given:
- Voltage (V) = 50 V
- Resistance (R) = 10,000 ohms
Substituting these values into Ohm's Law:
\(I = \frac{50 V}{10,000 \Omega}\)
\(I = 0.005 A\)
To convert amperes (A) to milliamperes (mA), we multiply by 1000:
\(I = 0.005 A \times 1000 \frac{mA}{A} = 5 mA\)
Therefore, the current flowing through the voltmeter is 5 mA.
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