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Consider the circuit shown in figure.Fin...

Consider the circuit shown in figure.Find the current through the`10(Omega)`resistor when the switch S is (a)open (b)closed .

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(a) When S is open
` R_eq = (10+20) Omega = 30 Omega `
` i=(3/30)A = 0.1A `
When S is closed
` R_eq = 10 Omega `
` i= (3/30) A = 0.3 A.
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HC VERMA-ELECTRIC CURRENT IN CONDUCTORS-Exercises
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  4. Find the currents through the three resistors shown in Figure

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

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

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

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

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

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

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

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

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

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

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  15. Twelve wire, each having equal resistance r, are joined to form a cube...

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  16. Find the equivalent resistances of the network shown in figure between...

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  17. An infinite ladder is constructed with 1(Omega)and 2(Omega)resistor as...

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  18. The emf (epsilon)and the internal resistance r of the battery shown in...

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  19. A voltmeter of resistances 400(Omega)is used to measure the potential ...

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