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The heating effect of electric current occurs because:

Question
The heating effect of electric current occurs because:
Current always increases resistance of wires
Electrical energy is dissipated as heat in a purely resistive circuit
Voltage always decreases with current flow
Charge is destroyed in the resistor
Answer
Electrical energy is dissipated as heat in a purely resistive circuit
Detailed Explanation
In a purely resistive circuit, all the electrical energy supplied by the source is eventually converted to heat.
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