Class 10 Electricity MCQ. We covered all the Class 10 Electricity MCQ in this post for free so that you can practice well for the exam.
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MCQ on Electricity for Class 10 Students
Choose the incorrect option.
(a) A bulb in electric circuits glows due to the heating effect of current.
(b) Tin cans, used for storing food are made by electroplating tin onto iron
(c) When the cells are connected in series, the resultant voltage is equal to the sum of the individual voltage of the cells
(d) None of these
Option d – None of these
What is the reason to pivot the compass needle on a sharp pin?
(a) To minimize the magnetic effect on the pin
(b) To maximize the magnetic effect on the pin
(c) To minimize the friction between the pin and the compass needle
(d) To ensure that the compass needle will not drop from the pivoted point
Option c – To minimize the friction between the pin and the compass needle
Consider the following statements: 1. The magnetic pole in the northern hemisphere is the north magnetic pole. 2. At all points on a magnet, an iron bar gets attracted. Which one of the following statements given above is/ are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Option d – Neither 1 nor 2
Consider the following statements: Heat produced in a conductor carrying current is independent of 1. Current passing through it. 2. Thermal conductivity. 3. Specific resistance. Which of the statement given above is/are correct?
(a) 1 and 3
(b) 2 only
(c) 1 and 2
(d) 2 and 3
Option d – 2 and 3
Consider the following statements: 1. If a piece of a bar magnet is broken into two equally long pieces, the pieces will not lose the magnetic properties. 2. Magnetic properties of a substance lie at the atomic level. Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Option c – Both 1 and 2
A given conductor carrying a current of 1 A produces an amount of heat equal to 2000 J. If the current through the conductor is doubled, the amount of heat produced will be
(a) 2000 J
(b) 4000 J
(c) 8000 J
(d) 1000 J
Option c – 8000 J
Two long wires each carrying a d.c. current in the same direction is placed close to each other. Which one of the following statements is correct?
(a) The wires will attract each other
(b) The wires will repel each other
(c) There will be no force between the wires
(d) There will be a force between the wires only at the moment when the current is switched ON or OFF
Option a – The wires will attract each other
Three equal resistances when combined in series are equivalent to 90 ohms. Their equivalent resistance when combined in parallel will be :
(a) 10 ohm
(b) 30 ohm
(c) 270 ohm
(d) 810 ohm
Option a – 10 ohm
Which one of the following devices changes low voltage alternating current to high voltage alternating current and vice versa?
(a) Generator
(b) Motor
(c) Transformer
(d) Vibrator
Option c – Transformer
Which one among the following is the correct order of power consumption for the light of equal intensity?
(a) CFL tube < Fluorescent tube < Incandescent bulb < Light emitting diode
(b) Light emitting diode <CFL tube < Fluorescent tube< Incandescent bulb
(c) CFL tube < Fluorescent tube < Light emitting diode < Incandescent bulb
(d) Incandescent bulb < Light emitting diode < Fluorescent tube < CFL tube
Option b – Light emitting diode
A coil of insulated copper wire is connected to a galvanometer forming a loop and a magnet is A: held stationary B: moved away along its axis C: moved towards along its axis There will be induced current in
(a) A only
(b) A and B only
(c) B and C only
(d) A, B, and C
Option c – B and C only
Which of the following statements is not true?
(a) The pattern of the magnetic field around a conductor due to an electric current flowing through it depends on the shape of the conductor
(b) The magnetic field of a solenoid carrying a current is similar to that of a bar magnet
(c) Magnitude of the magnetic field is directly proportional to the quantity of current flowing through the current
(d) Magnetic field produced by the passage of current through a straight wire is permanent
Option d – Magnetic field produced by the passage of current through a straight wire is permanent
A current passes through a wire of a non-uniform cross-section. Which of the following quantities are independent of the cross-section?
(a) The charge crossing in a given time interval
(b) Drift velocity
(c) Current density
(d) Free-electron density
Option a – The charge crossing in a given time interval
Which one of the following is correct? Lightning is formed, when
(a) similar charges of electricity rush towards each other and then get repelled
(b) clouds strike against impurities in the air and the friction burns up these impurities
(c) strong opposite charges in different clouds break down the resistance offered by intervening air
(d) water vapor produces electricity in the clouds
Option c – strong opposite charges in different clouds break down the resistance offered by intervening air
Which of the following items is used in the household wirings to prevent accidental fire in case of a short circuit?
(a) Insulated wire
(b) Plastic switches
(c) Non-metallic coatings on conducting wires
(d) Electric fuse
Option d – Electric fuse
When three resistors each having resistance, ‘r’ are connected in parallel, their resultant resistance is x. If these three resistances are connected in series, the total resistance will be
(a) 3x
(b) 3rx
(c) 9x
(d) 3/x
Option c – 9x
A simple circuit contains a 12 V battery and a bulb having 24-ohm resistance. When you turn on the switch, the ammeter connected to the circuit would read
(a) 0.5A
(b) 2A
(c) 4A
(d) 5A
Option a – 0.5A
Three resistors with magnitudes 2, 4, and 8 ohms are connected in parallel. The equivalent resistance of the system would be
(a) less than 2 ohms
(b) more than 2 ohms but less than 4 ohms
(c) 4 ohm
(d) 14 ohm
Option a – less than 2 ohms
Which one of the following statements about bar magnets is correct?
(a) The pole strength of the north pole of a bar magnet is larger than that of the south pole
(b) When a piece of a bar magnet is bisected perpendicular to its axis, the north, and south pole get separated
(c) When a piece of a bar magnet is bisected perpendicular to its axis two new magnets are formed
(d) The poles of a bar magnet are unequal in magnitude and opposite in nature
Option c – When a piece of a bar magnet is bisected perpendicular to its axis two new magnets are formed
Which one of the following common devices works on the basis of the principle of mutual induction?
(a) Tubelight
(b) Transformer
(c) Photodiode
(d) LED
Option b – Transformer
(a) Resistance
(b) Inductance
(c) Capacitance
(d) Wattage
Option a – Resistance
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