DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10
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.
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10
Table of Contents
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)
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10
6. Equivalent resistance of three resistors each of resistance of 2
(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)
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10
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)
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10
ALSO VISIT :
10TH CBSE
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: ELECTRICITY MCQ FOR CLASS 10