Question

Draw a schematic diagram of a circuit consisting of a battery of $4$ cells of $2\text{V}$ each connected to a key, an ammeter and two resistors of $2\Omega$ and $3\Omega$ respectively in series and a voltmeter to measure potential difference across $3\Omega$.

Answer 1

Hint In this question , the components such as battery of 4 cells (2V each), key , ammeter and 2 resistors are connected end to end , forming a single path for current flow(series connection).
A voltmeter is connected across 3 ohm resistors, forming two sets of electrically common points(parallel connection).

Complete Step by step solution
In this question, we have to place a battery of $4$ cells, key, ammeter and $2$ resistors ($2\Omega$ and $3\Omega$) in series. Also a voltmeter is to be attached parallel to the$3\Omega$ resistor.

This is the required circuit diagram.

Additional information
Series and parallel circuits:
1. In a series circuit, the sum of the voltages consumed by each individual resistance is equal to the source voltage.
2. In parallel circuits, components are connected in parallel along multiple paths so that the current can split up, and voltage stays the same.
3. In a series circuit, all components are connected end to end, forming a single path for current flow.
4. In a parallel circuit, all components are connected across each other, forming exactly two sets of electrically common points.

Note Knowledge of electric circuits is required, before doing these questions. In addition to this, the concept of circuit in parallel and series should also be clear. The function of various electronic components like resistor, ammeter and voltage should also be known as well.