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Suppose you have three resistor of (20 O...

Suppose you have three resistor of `(20 Omega),(50 Omega)and (100 Omega)`.what minimum and maximum resistances can you obtain from these resistors?

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Max. R = `(20+50+100) Omega`
= `170 Omega `
` min R =(1/ (5/100)+(2/200)+(1/100))`
` = (1/ (5+2+1/100)) `
` = 100/8 = 12.5 Omega ` .
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HC VERMA-ELECTRIC CURRENT IN CONDUCTORS-Exercises
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  2. Three bulbs,each having a resistance of 180(Omega)are connected in par...

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  3. Suppose you have three resistor of (20 Omega),(50 Omega)and (100 Omega...

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  4. A bulb is made using two filaments.A switch selects whether the filame...

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  5. 100A exists in the 5k(Omega) resistor, find the currents in the other ...

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  6. An ideal battery sends a current of 5A in a resistor. When another res...

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  7. Find the equivalent resistances of the network shown in figurebetween ...

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  8. A wire of resistance 15.0(Omega)is bent to form a regular hexagon ABCD...

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  9. Consider the circuit shown in figure.Find the current through the10(Om...

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  10. Find the currents through the three resistors shown in Figure

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  11. Shown a part of an electric circuit, The potentials at the points a,b,...

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  12. Each of the resistors shown in figure has a resistances of 10(Omega)an...

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  13. Find the potential difference V(a)-V(b)in the circutis shown in figure

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  14. In the circuit shown in figure ,(epsilon)(1)=3V,(epsilon)(2)=2V,(epsil...

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  15. Find the current through the 10(Omega)resistor shown in figure.

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  16. Find the current in the resistor shown in figure.

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  17. What should be the value of R in figure of which the current in it is ...

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  18. Find the equivalent resistance of the circuit shown in figure between ...

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  19. Find the current measured by the ammeter in the circuit shown in figur...

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  20. Consider the circuit shown in figure.Find (a) the current in the circu...

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