NCERT Class 10 Science Chapter 11 Electricity MCQ Question Answer Solution For School Students of Class 10th. We also Provides Notes and Important Questions for Class 10 Science. NCERT Class 10th Science book is applied in mostly boards like CBSE, HBSE, RBSE, Up Board, MP Board and also some other state boards.
Also Read:- Class 10 Science NCERT Solution
NCERT Class 10 Science Chapter 11 Electricity MCQ Question and Answer for CBSE, HBSE and Other Boards Solution.
Electricity Class 10 Science MCQ
1. Which of the following terms does not represent electrical power in the
circuit ?
(A) P=VI
(B) P= I2 R
(C) P = IR2
(D) P = V2/R
Answer
Ans. (C) P = IR2
2. Number of electrons constituting one coulomb of charge is
(A) 6.25×1018 electrons
(B) 1.25×1019 electrons
(C) 5.25×1018 electrons
(D) 0.25×1018 electrons
Answer
Ans. (A) 6.25×1018 electrons
3. Commercial unit of electrical energy one kilowatt hr. (1kWh) is equivalent to :
(A) 3.6 × 106 Watt second
(B) 3.6 × 106 J
(C) Both (A) and (B)
(D) None of these
Answer
Ans. (B) 3.6 × 106 J
4. The resistance of a uniform metallic conductor depends on :
(A) Length of conductor
(B) Area of cross-section
(C) Nature of material
(D) All of the above.
Answer
Ans. (D) All of the above.
5. Which of the following can be used to measure the potential difference ?
(A) Ammeter
(B) Voltmeter
(C) Both (A) & (B)
(D) None of these.
Answer
Ans. (B) Voltmeter
6. An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be :
(A) 75 W
(B) 100 W
(C) 50 W
(D) 25 W
Answer
Ans. (D) 25 W.
7. If the length of copper wire is doubled keeping same area of cross section, its resistivity will :
(A) Doubled
(B) Halved
(C) Remains same
(D) None of these
Answer
Ans. (B) Halved
8. If the cross-sectional area of an Aluminium wire is doubled and length remaining same, its resistivity will :
(A) Remain same
(B) Doubled
(C) Halved
(D) None of these.
Answer
Ans. (B) Doubled.
9. SI unit of current is
(A) Ampere
(B) Volt
(C) Watt
(D) Ohm
Answer
Ans. (A) Ampere
10. SI unit of resistance is
(A) Ohm (Ω)
(B) Ampere
(C) Watt
(D) Volt
Answer
Ans. (A) Ohm (Ω)
11. An electric bulb is connected to a 220V generator and current is 0.50A. Then power of bulb is
(A) 100W
(B) 110W
(C) 50W
(D) 150W
Answer
Ans. (A) 100W
12. Which of the following is Ohm’s law?
(A) V ∝ I
(B) V ∝ R
(C) I ∝ R
(D) none of the above.
Answer
Ans. (A) V ∝ I.