Question

State whether an electric heater will consume more electrical energy or less electrical energy per second when the length of its heating element is reduced. Give reasons for your answer.; State whether an electric heater will consume more electrical energy or less electrical energy per second when the length of its heating element is reduced. Give reasons for your answer.

Answer 1

Answer:

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Explanation:

the amount of electricity consumption will be less but also heat will reduce because

Resistance is directly proportional to length

Resistance is also directly proportional to current

also resistance creates heat .

so if we will reduce length both electricity and heat will reduce

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Answer 2

An electric heater will consume more electrical energy per second when the length of its heating element is reduced.

Explanation:

The electric heater can use more energy when its heating element's length is reduced  because resistance is directly proportional to length. Hence, resistance will decrease. power is inversely proportional to resistance. Then power will get increase.

A decrease in resistance therefore means an increase in the use of electricity.

Resistance is directly proportional to length,  $R = \rho \frac{I}{A}$

Power is inversely proportional to resistance,$P = \frac{V^2}{R}$

You can get all the answers of Chapter 1 in the link below:    

https://brainly.in/question/14961133

   

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