What is the current in mA through a 500 Ω resistor that is connected to a 1.5 V battery? Show all calculations using Ohm’s law (V = IR).

Question

What is the current in mA through a 500 Ω resistor that is connected to a 1.5 V battery? Show all calculations using Ohm’s law (V = IR).

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Bình An 4 years 2021-08-06T01:22:50+00:00 1 Answers 68 views 0

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  1. thongdat2
    0
    2021-08-06T01:24:12+00:00
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    Answer:

    3 mA.

    Explanation:

    The following data were obtained from the question:

    Resistor (R) = 500 Ω

    Potential difference (V) = 1.5 V

    Current (I) =.?

    Using the ohm’s law equation, we can obtain the current as follow:

    V = IR

    1.5 = I x 500

    Divide both side by 500

    I = 1.5 / 500

    I = 3×10¯³ A.

    Therefore, the current in the circuit is 3×10¯³ A.

    Finally, we shall convert 3×10¯³ A to milliampere (mA).

    This can be obtained as follow:

    Recall:

    1 A = 1000 mA

    Therefore,

    3×10¯³ A = 3×10¯³ × 1000 = 3 mA

    Therefore, 3×10¯³ A is equivalent to 3 mA.

    Thus, the current in mA flowing through the circuit is 3 mA.

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