Check the below NCERT MCQ Questions for Class 10 Science Chapter 12 Electricity with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided Electricity Class 10 Science MCQs Questions with Answers to help students understand the concept very well.
You can refer to NCERT Solutions for Class 10 Science Chapter 12 Electricity to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
Electricity Class 10 MCQs Questions with Answers
Question 1.
Which of the following represents voltage?
Answer
Answer: (a)
Question 2.
Unit of electric power may also be expressed as
(a) volt ampere
(b) kilowatt hour
(c) watt second
(d) Joule second
Answer
Answer: (a) volt ampere
Question 3.
Electrical resistivity of a given metallic wire depends upon
(a) its length
(b) its thickness
(c) its shape
(d) nature of the material
Answer
Answer: (d) nature of the material
Question 4.
A cell, a resistor, a key and ammeter are arranged as shown in the circuit diagrams of Figure (i), (ii) and (iii). The current recorded in the ammeter will be
(a) maximum in (i)
(b) maximum in (ii)
(c) maximum in (iii)
(d) the same in all the cases
Answer
Answer: (d) the same in all the cases
Question 5.
The unit of e.m.f. of a cell is
(a) dyne
(b) volt
(c) ampere
(d) joule
Answer
Answer: (b) volt
Question 6.
Kilowatt hour is the unit of
(a) power
(b) energy
(c) impulse
(d) force
Answer
Answer: (b) energy
Question 7.
1 kWh is equal to
(a) 3.6 × 106 MJ
(b) 3.6 × 105 MJ
(c) 3.6 × 10² MJ
(d) 3.6 MJ
Answer
Answer: (d) 3.6 MJ
Question 8.
Materials which allow larger currents to flow through them are called
(a) insulators
(b) conductors
(c) semiconductors
(d) alloys
Answer
Answer: (b) conductors
Question 9.
Conventionally, the direction of the current is taken as
(a) the direction of flow of negative charge
(b) the direction of flow of atoms
(c) the direction of flow of molecules
(d) the direction of flow of positive charge
Answer
Answer: (d) the direction of flow of positive charge
Question 10.
The unit of specific resistance is
(a) ohm
(b) ohm
(c) ohm-metre
(d) ohm per metre
Answer
Answer: (c) ohm-metre
Question 11.
The slope of voltage (V) versus current (I) is called
(a) resistance
(b) conductance
(c) resistivity
(d) conductivity
Answer
Answer: (a) resistance
Question 12.
The variable resistance is called
(a) resistor
(b) rheostat
(c) open switch
(d) none of these
Answer
Answer: (b) rheostat
Question 13.
The SI unit of resistance is
(a) ohm m
(b) ohm m1
(c) ohm
(d) (ohm)-1
Answer
Answer: (c) ohm
Question 14.
An electric iron draws a current 4 A when connected to a 220 V mains. Its resistance must be
(a) 1000 Ω
(b) 55 Ω
(c) 44 Ω
(d) None of these
Answer
Answer: (b) 55 Ω
Question 15.
The element used almost exclusively for filaments of incandescent lamps
(a) copper
(b) gold
(c) silver
(d) tungsten
Answer
Answer: (d) tungsten
Fill In the blanks
1. …………… measures the potential differences between two points of the circuit.
Answer
Answer: Voltmeter
2. Ammeter is used to measure the magnitude of …………… through any wire of a circuit.
Answer
Answer: Electric Current
3. Electric current flows in the circuit from …………… terminal of cell to the …………… terminal of cell.
Answer
Answer: Positive, Negative
4. Copper and aluminium are used for electric transmission lines because both posses …………… resistivity.
Answer
Answer: Low
5. The rate at which electric energy is consumed or dissipated is called ……………
Answer
Answer: Electric power
6. Presence of chemically inactive gases like argon and …………… prolong the life of the filament.
Answer
Answer: Nitrogen
Match the following columns
Column I | Column II |
(a) Resistance | (i) Infinite |
(b) The rate of flow of charge | (ii) Potential difference |
(c) The work done to move a unit charge | (iii) Obstruction to the flow of current from one point to another |
(d) Resistance of ideal ammeter | (iv) Watt |
(e) Resistance of ideal voltmeter | (v) Electric current |
(f) SI unit of electric power | (vi) Zero |
Answer
Answer:
Column I | Column II |
(a) Resistance | (iii) Obstruction to the flow of current from one point to another |
(b) The rate of flow of charge | (v) Electric current |
(c) The work done to move a unit charge | (ii) Potential difference |
(d) Resistance of ideal ammeter | (vi) Zero |
(e) Resistance of ideal voltmeter | (i) Infinite |
(f) SI unit of electric power | (iv) Watt |
Complete the crossword below.
Across
3. Bulb is usually filled with
5. SI unit of current
9. Flow of current in a wire is due to
Down
1. The device which measures current
2. The device which measures potential difference
4. The device which protect electric appliances from high current
6. SI unit of voltage
7. Combination used for household use
8. Commercial unit of energy
Answer
Answer:
Across:
3. Bulb is usually filled with (nitrogen)
5. SI unit of current (ampere)
9. Flow of current in a wire is due to (potential difference)
Down:
1. The device which measures current (ammeter)
2. The device which measures potential difference (voltmeter)
4. The device which protect electric appliances from high current (fuse)
6. SI unit of voltage (volt)
7. Combination used for household use (parallel)
8. Commercial unit of energy (kilowatt hour)
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