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Why are coils of electric toasters and e...

Why are coils of electric toasters and electric irons made of an alloy rather than that of a pure metal?

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Explain the following:Why are the conductors of electric heating devices,such as bread toasters and electric irons, made of an alloy rather than pure metal?

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MBD-ELECTRICITY-EXAMPLE
  1. What is the resistance of a conductor? State the factors on which resi...

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  2. Will the current flow more easily through a thick wire or a thin wire ...

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  3. Why are coils of electric toasters and electric irons made of an alloy...

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  4. Which material is best conductor?

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  5. Draw schematic diagram of a circuit consisting of a battery of three c...

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  6. Judge the equivalent resistance when the following are connected in pa...

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  7. Judge the equivalent resistance when the following are connected in pa...

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  8. An electric lamb of 100 Omega a toaster of resistance 50 Omega and a w...

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  9. What are the advantages of connecting electric devices in parallel wit...

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  10. How can three resistors of resistance 2 Omega 3 Omega and 6 Omega be c...

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  11. What is the (a) highest :(b) lowest total resistance that can be secur...

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  12. Compute the heat generated while transferring 96,000 C of charge in on...

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  13. An electric iron of resistance 20 Omega takes a curent of 5 A. Calcula...

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  14. What determines the rate at which the energy is delivered by a current...

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  15. An electric motor takes 5 A form a 220 V line. Determine the power of ...

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  16. A piece of wire of resistance R is cut into five equal parts. These pa...

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  17. Two conducting wires of the same material and of equal length and equa...

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  18. How is a voltmeter connected in the circuit to measure potential diffe...

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  19. When a 12 V battery is connected across an unknown resistor, there is ...

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  20. A battery 9 V is connected in series with resistors of 0.2Omega ,0.3Om...

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