Ask Question
8 July, 07:36

A resistor has a potential difference of 16.5 V across it. It develops thermal energy at 340 W. What is the current across the resistor?

+5
Answers (2)
  1. 8 July, 07:45
    0
    The current across the resistor is 20.61A

    Explanation:

    The power P can be expressed as a function of the potential difference V using the equation;

    P = IV

    Where;

    P = power

    I = current

    V = potential difference.

    Making current I the subject of formula;

    I = P/V

    Given;

    V = 16.5V

    P = 340 W

    Substituting the values;

    I = 340W/16.5V

    Current I = 20.61A
  2. 8 July, 07:48
    0
    i=20.61apms

    Explanation:

    Power=340W

    And a P. D=16.5V

    Power in electric circuit is

    P=iV

    Therefore,

    i=V/P

    i=340/16.5

    i=20.61amps
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A resistor has a potential difference of 16.5 V across it. It develops thermal energy at 340 W. What is the current across the resistor? ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers