Question

Inconveniences of joule's effect

Answer 1

Disadvantage

The heat is a product of resistance to the flow. Energy will be consumed to overcome the resistance, producing the heat, which in turn increases the resistance, leading up to a runaway situation of excess heat being produced at the expense of the power to the circuitry. If the heat cannot dissipate then fire or circuit failure may result.

Remember H= i^2 *R*T .............joule"s law of heating

Answer 2

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JOULE'S HEATING EFFECT

According to Joules law of heating, when a current I flows through a resistance R then :

Heat produced is

(I) Directly proportional to the square of current for a given resistance

(II) Directly proportional to the resistance of given circuit.

(III) Directly proportional to the time for which the resistance flows through the resistor.

So eqⁿ is $\bold{\huge{\boxed{\red{H=I^2Rt}}}}}$

$\bold{\huge{\boxed{\pink{INCOVENIENCE}}}}$

Heating effect of current converts useful electrical energy into heat. This unavoidable heating will increase the temperature of the components used in electrical circuit and alter their properties.

Heating in the conducting wire heats the insulation of conductors and detoriorates the insulating cover of the conductor.

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