A resistor is connected in series with a power supply of 20.00 V. The current measure is 0.50 A. What is the resistance of the resistor

Question

A resistor is connected in series with a power supply of 20.00 V. The current measure is 0.50 A. What is the resistance of the resistor

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niczorrrr 3 years 2021-07-31T05:53:31+00:00 1 Answers 96 views 0

Answers ( )

  1. thienan
    0
    2021-07-31T05:54:34+00:00
    Reply

    Answer:

    40 Ω

    Explanation:

    The following data were obtained from the question:

    Potential difference (V) = 20 V

    Current (I) = 0.50 A

    Resistance (R) =?

    From ohm’s law:

    V = IR

    Where:

    V is the potential difference.

    I is the current.

    R is the resistance.

    With the above formula, we can obtain the resistance of the resistor as follow:

    Potential difference (V) = 20 V

    Current (I) = 0.50 A

    Resistance (R) =?

    V = IR

    20 = 0.5 × R

    Divide both side by 0.5

    R = 20/0.5

    R = 40 Ω

    Therefore, the resistance of the resistor is 40 Ω

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