A device that converts chemical energy into electrical energy is called -
1) motor
2) generator
3) battery
4) moving-coil meter

A device that transforms mechanical energy into electrical energy is a ________.

Which of the following statements are true regarding electric generators?

1. An electric generator creates a time-dependent induced voltage. 

    

2. An electric generator is used to increase or decrease an alternating current voltage. 

    

3. An electric generator converts mechanical energy into electrical energy. 

    

4. An electric generator converts electrical energy into magnetic energy. 

    

5. An electric generator creates a time-independent induced voltage.

Which of the following statements are true?

The internal resistance of a battery decreases with decreasing temperature.

A battery is a device that produces electricity by transforming chemical energy into electrical energy.

The potential difference between the terminals of a battery, when no current flows to an external circuit, is referred to as the terminal voltage.

A battery does work on electric charges to bring them to a position of higher electric potential energy so that they can flow through a circuit to lower potential energy.