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What is the (a) highest :(b) lowest tota...

What is the (a) highest :(b) lowest total resistance that can be secured by combination of four coils of resistances 4`Omega` 8 `Omega` 12`Omega` 24`Omega`?

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What is the (a) highest :(b) lowest total resistance that can be secured by combination of four coils of resistances 4 Omega 8 Omega 10 Omega 20 Omega ?

How can three resistors of resistance 2 Omega 3 Omega and 6 Omega be connected to give a total resistance of (a) 4 Omega (b) 1 Omega ?

A wire of resistance 1 Omega is stretched to double its length. What is the new resistance?

MBD-ELECTRICITY-EXAMPLE
  1. What are the advantages of connecting electric devices in parallel wit...

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

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

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

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

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

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

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

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

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

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

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

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  13. How many 176 Omega resistors in parallel are required to carry 5A on a...

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  14. How will you connect three resistors, each of resistance 6 Omega, so t...

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  15. Several electric bulbs designed to be used on a 220 V electric supply ...

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  16. A hot plate of an electric oven connected to a 220 V line has two resi...

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  17. Compare the power used in 2 Omega resistor in each of the following ci...

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  18. Two lamps, one rated 100 W at 220 V and other 60 W at 220 V, are conn...

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  19. Which uses more energy, a 250 W TV set for 1 hour or a 1,200 W toaster...

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  20. An electric heater of resistance 8Omega draws 15 A from service mains ...

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