an electric heater of resistance 8 draws 15C of charge per second. Suppose this happens for a period of 2 hours, calculate the rate at which hear is developed in the heater

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Solution

Here Given that Resistance of the electric heater (R) = 8 Ω

Current drawn (I) = 15 A

We know that P = I²R

= 15×15×8

= 1800w or J/s
∴ Heat is produced by the heater at the rate of 1800 J/s.

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an electric heater of resistance 8 draws 15C of charge per second. Suppose this happens for a period of 2 hours, calculate the rate at which hear is developed in the heater

Here Given that Resistance of the electric heater (R) = 8 Ω Current drawn (I) = 15 A We know that P = I2R = 15×15×8 = 1800w or J/s ∴ Heat is produced by the heater at the rate of 1800 J/s.

Here Given that Resistance of the electric heater (R) = 8 Ω

Current drawn (I) = 15 A

We know that P = I²R

= 15×15×8

= 1800w or J/s
∴ Heat is produced by the heater at the rate of 1800 J/s.