Electricity MCQ Questions Class 10 Science Chapter 12
NCERT MCQ Questions for Class 10 Science Chapter 12 Electricity. Electricity MCQ Questions with Answers from Class 10 Science.
Electricity MCQ Questions Class 10 Science Chapter 12
Electricity Multiple Choice Questions with Answers Class 10 Science Chapter 12 PDF is available.
1) The rate of flow of electric charge is called as
a) Voltage
b) Resistance
c) Electric current
d) Potential difference
Ans: c) electric current
2) The direction of flow of electric current is
a) Opposite to the direction of flow of electrons
b) In the direction of flow of electrons
c) From positive to negative terminal of battery
d) Both a and c
Ans: d) both a and c
3) The SI unit of electric charge is
a) Coulomb
b) Volt
c) Amperes
d) Ohms
Ans: a) coulomb
4) The SI unit of electric current is
a) Coulomb
b) Volt
c) Ohm
d) Amperes
Ans: d) amperes
5) The instrument used to measure electric current is
a) Ammeter
b) Voltmeter
c) Rheostat
d) Transformer
Ans:: a) ammeter
6) The instrument used to measure potential difference between two points is
a) Ammeter
b) Voltmeter
c) Rheostat
d) Transformer
Ans: b) voltmeter
7) 1mA =
a) 10-5A
b) 10+3A
c) 10-3A
d) 102 A
Ans: c) 10-3 A
8) If an electric charge of 300C flows for 10 minutes then what is the value electric current flowing
a) 5A
b) 00.05A
c) 0.5A
d) 5.5A
Ans: c) 0.5A
9) The SI unit of electric potential difference is
a) Volt
b) Ampere
c) Ohm
d) Coulomb
Ans: a) volt
10) 1V=
a) 1V = 1J*1C
b) 1V= 1J/1C
c) 1V= 1C + 1J
d) 1V = 1C – 1J
Ans: b) 1V = 1J/1C
11) The ammeter is always connected in ____ with the electric circuit.
a) Parallel
b) Series
c) Both a and b
d) None
Ans: b) series
12) The voltmeter is always connected in ______ with the circuit.
a) Series
b) Parallel
c) Both a and b
d) None
Ans: a) series
13) According to Ohm’s law,
a) V= I/R
b) V= R/I
c) V= IR
d) R= VI
Ans: c) V= IR
14) 1ohm =
a) 1ohm= 1V*1A
b) 1ohm= 1V/1A
c) 1ohm= 1A/1V
d) 1ohm= 1V-1A
Ans: 1 ohm= 1V/1A
15) The electric current flowing through the resistor is inversely proportional to its
a) Potential difference
b) Voltage
c) Charge
d) Resistance
Ans: d) resistance
16) A component used to regulate current without changing the voltage source is called as
a) Resistance
b) Potential difference
c) Electric current
d) Variable resistance
Ans: d) variable resistance
17) In an electric circuit, the instrument used to change the resistance in the circuit is called as
a) Variable resistance
b) Rheostat
c) Resistance box
d) Voltmeter
Ans: b) rheostat
18) The materials having very low resistivity are called as
a) Insulators
b) Semiconductors
c) Superconductors
d) Conductors
Ans: d) conductors
19) The materials having very high resistivity are called as
a) Insulators
b) Semiconductors
c) Superconductors
d) Conductors
Ans: a) insulators
20) The materials having resistivity in between insulators and conductors are called as
a) Semiconductors
b) Superconductors
c) Insulators
d) Conductors
Ans: a) semiconductors
21) The resistance of the conductor depends on its
a) It’s length
b) It’s area of cross section
c) Nature of the material of conductor
d) a, b and c
Ans: d) a, b and c
22) The SI unit of resistance is
a) Ohm meter
b) Ohm
c) Ohm-1
d) Mho
Ans: b) ohm
In case you are missed :- Previous Chapter MCQ Questions
23) The SI unit of resistivity is
a) Ohm meter-1
b) Ohm meter
c) Ohm
d) Meter
Ans: b) ohm meter
24) The materials having resistivity in the range of 10-8 ohm m to 10-6 ohm m are
a) Metals
b) Alloys
c) Insulators
d) Both a and b
Ans: d) both a and b
25) The materials having resistivity in the order of 1012 to 1017 ohm m are
a) Conductors
b) Semiconductors
c) Insulators
d) Superconductors
Ans: c) insulator
26) The resistance and resistivity of the material depends on the
a) Pressure
b) Volume
c) Temperature of the material
d) None
Ans: c) temperature of the material
27) The material having lowest resistivity is
a) Copper
b) Aluminium
c) Iron
d) Silver
Ans: d) silver
28) The equivalent resistance when resistors R1, R2 are connected in series is
a) Re= R1 + R2
b) Re= 1/R1 + 1/R2
c) Re= R1 – R2
d) Re= R1*R2
Ans: Re= R1 + R2
29) The equivalent resistance in series combination of resistors will be
a) Less than each individual resistance
b) Greater than any individual resistance
c) Equal to any individual resistance
d) None
Ans: b) greater than any individual resistance
30) If two resistors of values 20ohm and 30 ohm are connected in series then their equivalent resistance is
a) 50 ohm
b) 1/50ohm
c) -50ohm
d) 0
Ans: a) 50 ohm
31) In series combination which of the following quantity remains same
a) Potential difference
b) Voltage
c) Electric current
d) Electric charge
Ans: c) electric current
32) In parallel combination of resistors which of the following quantity remains same across each resistor
a) Voltage
b) Electric current
c) Resistance
d) Electric charge
Ans: a) voltage
33) According to Joule’s law of heating
a) H= VI/t
b) H= It/V
c) H= VIt
d) H= 0
Ans: c) H= VIt
34) 1kWh=
a) 3.6*10-6 J
b) 3.6*106 J
c) -3.6*106 J
d) 3.6*106 kJ
Ans: b) 3.6*106 J
35) The commercial unit of electrical energy is
a) KW
b) Watt
c) KWh
d) None
Ans: c) kWh
36) The resistance of ammeter is
a) High
b) Low
c) Moderate
d) None
Ans: b) low
37) The resistance of an ideal ammeter is
a) Low
b) High
c) Zero
d) None
Ans: c) zero
38) The fuse wires are connected in ___ in an electrical circuit to protect the circuit from extra current flow.
a) Parallel
b) Series
c) Both a and b
d) None
Ans: series
39) In domestic wiring___ arrangement is used.
a) Series
b) Parallel
c) Both a and b
d) None
Ans: b) parallel
40) Which of the following shows heating effect of electric current
a) Fuse wire
b) Electric iron
c) Electric heaters
d) a, b and c
Ans: d) a, b and c
41) The resistance of voltmeter is
a) Low
b) High
c) Moderate
d) None
Ans: b) high
42) Electric power is given by
a) V= PI
b) I= PV
c) P= VI
d) P= V/I
Ans: c) P= VI
43) The SI unit of electric power is
a) KWh
b) Watt
c) J
d) Volt ampere
Ans: d) volt ampere
44) The resistivity does not depends on the
a) Length
b) Area of cross section
c) Temperature
d) Shape of the resistor
Ans: d) shape of the resistor
45) In parallel combination, the equivalent resistance obtained is
a) Grater than each individual resistance
b) Less than each individual resistance
c) Equal to each individual resistance
d) None
Ans: b) less than each individual resistance
46) If the resistors R1 and R2 connected in parallel then their equivalent resistance is
a) 1/Re= 1/R1 + 1/R2
b) Re= R1*R2/ (R1+R2)
c) Re= R1 + R2
d) Both a and b
Ans: d) both a and b
In case you are missed :- Next Chapter MCQ Questions