Electric Power Sources and Current Types Quiz
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Questions and Answers

What is the difference between batteries and generators in terms of energy conversion?

Batteries convert chemical energy into electrical energy, while generators convert mechanical energy into electrical energy.

Define direct current and alternating current in terms of charge movement.

In direct current, charges move in a single direction. In alternating current, the direction of charge movement continually alternates.

What is electric power and how is it calculated?

Electric power is the rate of conversion of electrical energy, and it is calculated as P = I∆V or electric power = current  potential difference.

How is electrical energy transferred to minimize energy loss?

<p>Electrical energy is transferred at high potential differences to minimize energy loss.</p> Signup and view all the answers

What is the role of batteries and generators in supplying energy to charge carriers?

<p>Batteries and generators supply energy to charge carriers.</p> Signup and view all the answers

What is the formula for power dissipated by a resistor?

<p>P = I^2R</p> Signup and view all the answers

How do electric companies measure energy consumed?

<p>In kilowatt-hours</p> Signup and view all the answers

Why is electrical energy transferred at high potential differences?

<p>To minimize energy loss</p> Signup and view all the answers

What is the unit conversion from milli (m) to the basic unit?

<p>Multiply by 10^-3</p> Signup and view all the answers

How do you convert from Kilo (k) to the basic unit?

<p>Multiply by 10^3</p> Signup and view all the answers

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