In circuit shown below, the resistances are given in ohms and the battery is assumed ideal with emf equal to 3 *volt*. The voltage across the resistance *R*_{4} is

(1) 0.4 *V*

(2) 0.6 *V*

(3) 1.2 *V*

(4) 1.5 *V*

PMT - 2004

Concept Questions :-

Combination of resistors

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If you are provided three resistances 2 Ω, 3 Ω and 6 Ω. How will you connect them so as to obtain the equivalent resistance of 4 Ω

(1)

(2)

(3)

(4) None of these

PMT - 2003

Concept Questions :-

Combination of resistors

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The equivalent resistance and potential difference between *A* and *B* for the circuit is respectively

(1) 4 Ω, 8 *V*

(2) 8 Ω, 4 *V*

(3) 2 Ω, 2 *V*

(4) 16 Ω, 8 *V *

PMT - 2003

Concept Questions :-

Combination of resistors

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Five equal resistances each of resistance *R* are connected as shown in the figure. *A* battery of *V* volts is connected between *A* and *B*. The current flowing in *AFCEB* will be

(1) $\frac{3V}{R}$

(2) $\frac{V}{R}$

(3) $\frac{V}{2R}$

(4) $\frac{2V}{R}$

PMT - 2004

Concept Questions :-

Combination of resistors

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For the network shown in the figure the value of the current *i* is** **

(1) $\frac{9V}{35}$

(2) $\frac{5V}{18}$

(3) $\frac{5V}{9}$

(4) $\frac{18V}{5}$

PMT - 2005

Concept Questions :-

Combination of resistors

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When a wire of uniform cross-section a, length *l* and resistance *R* is bent into a complete circle, the resistance between any two of diametrically opposite points will be :

(1) $\frac{R}{4}$

(2) $\frac{R}{8}$

(3) 4*R*

(4) $\frac{R}{2}$

PMT - 2005

Concept Questions :-

Combination of resistors

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In the circuit given *E* = 6.0* V*, *R*_{1} = 100 *ohms, R*_{2} = *R*_{3} = 50 *ohms*, *R*_{4} = 75 *ohms*. The equivalent resistance of the circuit, in ohms, is** **

(1) 11.875

(2) 26.31

(3) 118.75

(4) None of these

Concept Questions :-

Combination of resistors

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By using only two resistance coils-singly, in series, or in parallel one should be able to obtain resistances of 3, 4, 12, and 16 *ohms*. The separate resistances of the coil are :

(1) 3 and 4

(2) 4 and 12

(3) 12 and 16

(4) 16 and 3

Concept Questions :-

Combination of resistors

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In the given circuit, the voltmeter records 5 *volts. *The resistance of the voltmeter in *ohms* is :

(1) 200

(2) 100

(3) 10

(4) 50

Concept Questions :-

Kirchoff's voltage law

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In the adjoining circuit, the battery *E*_{1} has an *e.m.f.* of 12 *volts* and zero internal resistance while the battery *E* has an *e.m.f.* of 2 *volts*. If the galvanometer *G* reads zero, then the value of the resistance *X* in *ohm* is

(1) 10

(2) 100

(3) 500

(4) 200

Concept Questions :-

Grouping of cells

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Difficulty Level: