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A low voltage supply from which one need...

A low voltage supply from which one needs high currents must have very low internal resistance. Why?

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
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  10. The thermistors are usually made of

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  11. The resistance of a bulb filmanet is 100Omega at a temperature of 100^...

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  13. The resistance of hot tungsten filament is about 10 times the cold res...

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  14. An electric bulb is rated 220 V and 100 W. when it is operated on 110 ...

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  16. A heater coil is cut into two equal parts and only one part is now use...

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  17. If in the circuit, power dissipation is 150 W, then R is

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  18. A wire when connected to 220 V mains supply has power dissipation P1. ...

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