To determine the equivalent resistance of two resistors when connected in series, a student arranged the circuit components as shown in the diagram. But he did not succeed to achieve the objective.
Which of the following mistakes has been committed by him in setting up the circuit?

position of voltmeter in incorrect

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position of ammeter is incorrect

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terminals of voltmeter are wrongly connected

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terminals of ammeter are wrongly connected

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Solution

The correct option is D terminals of ammeter are wrongly connected
The ammeter here would be used to measure the current passing through the wire with the resistances in series. However the terminals of ammeter are wrongly connected. The positive terminal of ammeter must be connected to the positive terminal of the battery, and negative with the negative.

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Similar questions

Q. To find the resultant resistance of two resistors when connected in series, a student arranged the various components according to the circuit shown alongside:

The student, however, did not succeed in his objective. Which of the following mistake has been made by the student in setting up the circuit?
(1) position of voltmeter is wrong
(2) position of ammeter is wrong
(3) terminals of voltmeter are wrongly connected
(4) terminals of ammeter are wrongly connected

Q. A student sets up an electric circuit shown here for finding the equivalent resistance of two resistors in series:

In this circuit, the:
(1) resistors have been connected correctly but the voltmeter has been wrongly connected
(2) resistors have been connected correctly but the ammeter has been wrongly connected
(3) resistors, as well as the voltmeter, have been wrongly connected
(4) resistors, as well as the ammeter, have been wrongly connected

For carrying out the experiment, on finding the equivalent resistance of two resistors connected in series, a student sets up the circuit as shown. On further verification, he finds out that the circuit has one or more of the following faults:

(i) The resistors R₁ and R₂ have not been correctly connected in series

(ii) The voltmeter has not been correctly connected in the circuit

(iii) The ammeter has not been correctly connected in the circuit

Out of these three, the actual fault in the circuit is/are:

Q. Choose the appropriate set of apparatus for performing the experiment to determine the equivalent resistance of two resistors when connected in series:
(1) Voltmeter, Ammeter, Two resistors, Key, Battery
(2) Ammeter, Two resistors, Key, Connecting wires, Rheostat, Battery
(3) Key, Rheostat, Voltmeter, Two resistors, Battery, Connecting wires
(4) Battery, Ammeter, Connecting wires, Rheostat, Voltmeter, Two resistors, Key

Which statement is /are correct?
1. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel.
2. An ammeter has a high resistance.
3. A voltmeter has a low resistance.

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To determine the equivalent resistance of two resistors when connected in series, a student arranged the circuit components as shown in the diagram. But he did not succeed to achieve the objective.Which of the following mistakes has been committed by him in setting up the circuit?

To determine the equivalent resistance of two resistors when connected in series, a student arranged the circuit components as shown in the diagram. But he did not succeed to achieve the objective.
Which of the following mistakes has been committed by him in setting up the circuit?