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?
$R _{1} k \Omega$
$R _{2} k \Omega$
$R _{3} k \Omega$
(a)
1
1
2
(b)
2
1
2
(c)
3
2
2
(d)
3
2
3
| $R _{1} k \Omega$ | $R _{2} k \Omega$ | $R _{3} k \Omega$ | |
| (a) | 1 | 1 | 2 |
| (b) | 2 | 1 | 2 |
| (c) | 3 | 2 | 2 |
| (d) | 3 | 2 | 3 |
Current Electricity
Solution: