A potential divider is used to give outputs of 2 V and 3 V from a 5 V source, as shown in figure. Which combination of resistances, R1, R2, R3 gives the correct voltages? R 1 k Ω R 2 k Ω R 3 k Ω (a) 1 1 2 (b) 2 1 2 (c) 3 2 2 (d) 3 2 3

Question

A potential divider is used to give outputs of 2 V and 3 V from a 5 V source, as shown in figure. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/e2f1dad14018f01b811ddca410f08ada-.png" /> Which combination of resistances, R1, R2, R3 gives the correct voltages? R 1 k Ω R 2 k Ω R 3 k Ω (a) 1 1 2 (b) 2 1 2 (c) 3 2 2 (d) 3 2 3 (A) a (B) b (C) c (D) d

Tardigrade Admin · Accepted Answer

i R1=(5-3) V =2 V i R2=(3-2) V =1 V i R3=(2-0) V =2 V ⇒ R1: R2: R3=2: 1: 2

Q. A potential divider is used to give outputs of $2 V$ and $3 V$ from a $5 V$ source, as shown in figure.

Which combination of resistances, $R_{1}, R_{2}, R_{3}$ gives the correct voltages?

$R_{1} k Ω$ $R_{2} k Ω$ $R_{3} k Ω$

(a) 1 1 2

(b) 2 1 2

(c) 3 2 2

(d) 3 2 3

a

b

c

d

$i R_{1} = (5 - 3) V = 2 V$
$i R_{2} = (3 - 2) V = 1 V$
$i R_{3} = (2 - 0) V = 2 V$
$\Rightarrow R_{1} : R_{2} : R_{3} = 2 : 1 : 2$

	$R_{1} k Ω$	$R_{2} k Ω$	$R_{3} k Ω$
(a)	1	1	2
(b)	2	1	2
(c)	3	2	2
(d)	3	2	3

Q. A potential divider is used to give outputs of 2V and 3V from a 5V source, as shown in figure. Which combination of resistances, R1​,R2​,R3​ gives the correct voltages? R1​kΩ R2​kΩ R3​kΩ (a) 1 1 2 (b) 2 1 2 (c) 3 2 2 (d) 3 2 3

a

b

c

d

iR1​=(5−3)V=2V iR2​=(3−2)V=1V iR3​=(2−0)V=2V ⇒R1​:R2​:R3​=2:1:2

Q. A potential divider is used to give outputs of $2 V$ and $3 V$ from a $5 V$ source, as shown in figure.

Which combination of resistances, $R_{1}, R_{2}, R_{3}$ gives the correct voltages?

$R_{1} k Ω$ $R_{2} k Ω$ $R_{3} k Ω$

(a) 1 1 2

(b) 2 1 2

(c) 3 2 2

(d) 3 2 3

$i R_{1} = (5 - 3) V = 2 V$
$i R_{2} = (3 - 2) V = 1 V$
$i R_{3} = (2 - 0) V = 2 V$
$\Rightarrow R_{1} : R_{2} : R_{3} = 2 : 1 : 2$