Physics, asked by joyahamed12, 2 months ago

3. Heat produced in copper wire is 1000J, when electricity passed throughit for one minute(a) What will be the heat when current is doubled?(1)(b) What will be the heat when current is halved?(1)4. Resistance of a heater workes on 230V AC is 5009.(a) Write the

Answers

Answered by gurmukhjosan

12

Answer:

A: heat will be 4000J

B: heat will be 250J

Explanation:

Heat(H) = I²Rt

So heat dissipated is directly proportional to the square of electric current.

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