Question

What current is produced with a voltage of 6.0 V and a resistance of 445 ohms?
answers:
17.4 mA

11.0 mA

15.7 mA

13.5 mA

Answer 1

To find the current produced with a voltage of 6.0 V and a resistance of 445 ohms, you can use Ohm's Law, which is given by the formula:

\[ I = \frac{V}{R} \]

Where:
- \( I \) is the current in amperes (A),
- \( V \) is the voltage in volts (V),
- \( R \) is the resistance in ohms (Ω).

Substituting the given values:

\[ I = \frac{6.0 \, \text{V}}{445 \, \Omega} \]

Now, performing the calculation:

\[ I = 0.01348 \, \text{A} \]

To convert this to milliamperes (mA):

\[ I = 0.01348 \, \text{A} \times 1000 \, \left(\frac{\text{mA}}{\text{A}}\right) = 13.48 \, \text{mA} \]

Rounding to one decimal place, we get:

\[ I \approx 13.5 \, \text{mA} \]

So the correct answer is **13.5 mA**.