Answered

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an electric heater having resistance equal to 5 ohm is connected to electric source . If it produces 180 J of heat in one second ,find the potential difference across the electric heaterl​

Sagot :

Answer:

V = 30 volts

Explanation:

Given that,

The resistance of an electric heater, R = 5 ohm

Heat produced is 180 J in one second

We need to find the potential difference of the electric heater. The heat produced is given by :

[tex]E=I^2Rt\\\\or\\\\E=\dfrac{V^2}{R}t\\\\V=\sqrt{\dfrac{ER}{t}} \\\\V=\sqrt{\dfrac{180\times 5}{1}} \\\\V=30\ V[/tex]

So, the potential difference across the heater is 30 volts.

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