Series-Parallel Circuits

Q1: A 6 V battery output is divided down to obtain two output voltages. Three 2.2 k resistors are used to provide the two taps. The two output voltages are

A 2 V, 4 V

B 2 V, 2 V

C 2 V, 6 V

D 4 V, 6 V

ANS:A - 2 V, 4 V

This question is just like the working of a Simple Rheostat.

For example our battery is being converted into 2-steps of voltages by taking the connection points (or simply taps). As given below;

Step-1: Take the conncection or tap just after the first resistance>>
So Vout=6 * 2.2k/(3*2.2)k= 2V.
Step-2: Take the tap just after 2 resistors i.e.
vout=6* (2.2k+2.2k)/(3*2.2)k= 4 V.
So sol is 2, 4 V.



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