Reply To: Basic Electricity unit 3

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Susan Brown

    It sounds like you’ve got it!

    In that second step (power), make sure you just use the resistance of the loose connection, since that’s what we’re asking for. Some students accidentally use the total resistance there, which gives the heat generated by both loads together.

    Yes, the increased total resistance (due to the loose connection) decreases the current, because that’s the relationship of E, I, and R.

    (Voltage supply is set at 240v and won’t change.)

    And because power/heat and current are directly proportional, that means the heat generated by the element will decrease from what it would be if there was no loose connection adding extra resistance and thus decreasing the current.

    Let me know if you have any other questions.

    • This reply was modified 1 year, 8 months ago by Susan Brown.