ELECTRICITY MCQ FOR CLASS 10

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POINTS TO REMEMBER

Current, I = 

 ■           q = ne where n is the number of electrons

 ■          V = IR

■ Ammeter is always connected in series in a circuit through which the current is to be measured.

■ Potential difference, V =      

■ Voltmeter is always connected in parallel across the points between which the potential difference is to be measured.

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ELECTRICITY MCQ FOR CLASS 10

DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10

1. The following instruments are available in a laboratory:

Millimeter A₁ of range 0-300mA and least count 10mA. Millimeter A₂ of range 0-200mA and least count 20mA. Voltmeter V₁ of range 0-5 V and least count 0-2 V. Voltmeter V₂ of range 0-3 V and least count 0-3 V. Out of the following pairs of instruments, which pair would be the best choice for carrying out the experiment to determine the equivalent resistance of two resistors connected in series?

(a) Millimeter A₁ and voltmeter V₁

(b) Millimeter A₂ and voltmeter V₂

(c) Millimeter A₁ and voltmeter V₂

(d) Millimeter A₂ and voltmeter V₁

Ans. (a)

2. In the experiment to verify Ohm’s law, rheostat is used to vary

(a) voltage of the cell

(b) resistance of the circuit

(c) direction of current

(d) resistance of the resistor

Ans. (b)

3. Resistance of a metallic conductor

(a) increases with the increase in temperature

(b) increases with the decrease in temperature

(c) decreases with the increase in temperature

(d) none of these.

Ans. (a)

4. which of the following devices would you use to maintain potential difference between two points of a conductor?

(a) A rheostat

(b) A cell

(c) A voltmeter

(d) An ammeter

Ans. (b)

5. In Ohm’s law experiment, the physical quantity/quantities which is/are to kept constant while doing experiment is/are:

(a) Potential difference

(b) Current

(c) Temperature

(d) Potential difference, current, temperature.

Ans. (c)

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6. Equivalent resistance of three resistors each of resistance of 2

 connected in series as determined experimentally should be:

(a) 4

(b) 6

(c) 9

(d) 2

Ans. (b)

7. An ammeter has a range of (0 – 3) ampere and there are 30 divisions on its scale. What is its least count?

(a) 1.0 A

(b) 0.5 A

(c) 0.1 A

(d) 0.01 A

Ans. (c)

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8. In a voltmeter, there are 20 divisions between the 0 mark and 0.5 V mark. The least count of the voltmeter is

(a) 0.020 V

(b) 0.025 V

(c) 0.050 V

(d) 0.250 V

Ans. (b)

9. In a millimeter, there are 20 divisions between 400mA mark and 500mA mark. The least count of the millimeter is

(a) 0.5mA

(b) 5mA

(c) 10mA

(d) 50mA

Ans. (b)

10. Electrical resistivity of a given metallic wire depends upon

(a) Its length

(b) Its thickness

(c) Its shape

(d) Nature of material.

Ans. (d)

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ALSO VISIT :

10^TH CBSE

Also Learn:	Attempt the Quiz on Mathematics	Attempt the Quiz on Social Science (Economics)
GLOBALISATION AND INDIAN ECONOMY  MONEY AND CREDIT  MIND MAP FOR NATIONALISM IN EUROPE LIGHT REFLECTION AND REFRACTION REAL NUMBERS  QUESTIONS ON CARBON AND ITS COMPOUNDS HEREDITY AND EVOLUTION CLASS 10ELECTRICITY CLASS 10 QUESTIONS HOW DO ORGANISMS REPRODUCE CLASS 10 PERIODIC CLASSIFICATION OF ELEMENTS CLASS 10 MANAGEMENT OF NATURAL RESOURCES CLASS 10 NOTES MAGNETIC EFFECTS OF ELECTRIC CURRENT QUESTIONS	Real Numbers	Development Sectors of Indian Economy Money and Credit Globalisaton and Indian Economy Consumer Rights

DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10

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