Test-MCQ Class 10-NCERT -Science-Chapter 12-Test-1

1. 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?

2. For the given circuit, name the components which are connected in parallel.

3. A student arranges the following circuit to get equivalent resistance of a series combination of two resistors R1 and R2.

Which one of the following statements will be true for this circuit?

4. An ammeter has 20 divisions between 0 mark and 2A mark on its scale. The least count of ammeter is

5. A student finds that there are 20 divisions between zero mark and 1V mark of a voltmeter. The least count of voltmeter is

6. The current flowing through a resistor connected in an electric circuit and the potential difference applied across its ends are shown in figure alongside.

7. Which of the following is the correct method to connect the ammeter and voltmeter with resistance in the circuit to verify Ohm’s law?

8. In an experiment on studying the dependence of the current I flowing through a given resistor on the potential difference V applied across it, a student has to change the value of the current. For doing this, he should change the

9. A milliammeter had graduations marked 0, 100, 200, 300, 400 and 500. The space between 0 mark and 100 mark is divided into 20 divisions. If the pointer of the milliammeter is indicating the seventh graduation after 300 mark, the current flowing in the circuit is

10. If a student while studying the dependence of current on the potential difference keeps the circuit closed for a long time to measure the current and potential difference, then

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