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4 September, 18:36

If the current flowing through an electric heater increases from 6 to 12 amp while the voltage remains the same, the heat produced by the heater will be

a. reduced one-half.

c. two times the original heat.

b. unchanged.

d. four times the original heat.

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Answers (1)
  1. 4 September, 21:48
    0
    Q=l^2 times R times t

    Where Q - heat, I - current, R - resistance and t is time

    If you increase I twice (and it's squared), than Q gonna went up 4 times (2 squared).

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