NEET Physics Electricity MCQs Set A

Answer: B

Question. The force acting on a unit positive test charge at a point inside an electric field is called
(a) potential
(b) field
(c) field intensity
(d) potential difference.

Answer: C

Question. Work done is moving a unit positive test charge from one point to other inside an electric field, is called
(a) potential
(b) field
(c) field intensity
(d) potential difference

Answer: D

Question. Electricity constituted by moving electric charges, is called
(a) positive electricity
(b) negative electricity
(c) current electricity
(d) static electricity.

Answer: C

Question. The condition for an electric charge to flow from one point to other is that the two points must have electric
(a) circuit
(b) current
(c) potential difference
(d) cell.

Answer: C

Question. The device which measures electric potential difference between two points is called
(a) ammeter
(b) voltmeter
(c) manometer
(d) water meter

Answer: B

Question. The device which measures electric current through a conductor is called
(a) ammeter
(b) voltmeter
(c) manometer
(d) water meter.

Answer: A

Question. With increase in temperature, resistance of a conductor
(a) decreases
(b) increases
(c) may decreases or increase according to the situation
(d) no particular observation.

Answer: B

Question. Central part of an atom is called
(a) molecule
(b) proton
(c) ion
(d) nucleus.

Answer: D

Question. In an atom, particle having a negative charge, is called
(a) neutron
(b) proton
(c) electron
(d) ion.

Answer: C

Question. A body gets positively charged by losing
(a) neutrons
(b) protons
(c) electrons
(d) α-particles.

Answer: C

Question. A body gets negatively charged by gaining
(a) neutrons
(b) protons
(c) electrons
(d) α-particles.

Answer: C

Question. Time rate of work done or electrical energy developed or consumed by a generator or appliance, is called electrical
(a) current
(b) power
(c) potential
(d) energy.

Answer: B

Question. The unit of electrical power is
(a) watt (W)
(b) ampere (a)
(c) joule (J)
(d) ohm (Ω)

Answer: A

Question. In series combination of electrical appliances, total electrical power
(a) increases
(b) decreases
(c) may increase or decrease according to the situation
(d) no definite observation.

Answer: B

Question. In parallel combination of electrical appliances, total electrical power
(a) increases
(b) decreases
(c) may increase or decrease according to the situation
(d) no definite observation.

Answer: A

Question. The correct relation between heat produced (H) and electric current (I) flowing
(a) H ∝ I
(b) H ∝ 1/I
(c) H ∝ I²
(d) H ∝ 1/I2.

Answer: C

Question. In Q. 42, the relation between H and I is called
(a) Newton's law
(b) Faraday's law
(c) Ohm's law
(d) Joule's law.

Answer: A

Question. In electric heating appliances the material of the heating element is
(a) brass
(b) nichrome
(c) silver
(d) copper.

Answer: B

Question. In domestic electric circuits, the cheapest appliance used is
(a) fuse
(b) bulb
(c) fan
(d) television.

Answer: A

Question. An ammeter has 20 divisions between mark 0 and mark 2 on its scale. The least count of the ammeter is
(a) 0.02 A
(b) 0.01 A
(c) 0.2 A
(d) 0.1 A.

Answer: C

Question. To determine the equivalent resistance of two resistors when connected in series, a student arranged the circuit components as shown in the diagram. But he did not succeed to achieve the objective. 

Which of the following mistake has been committed by him in setting up the circuit?
(a) Position of ammeter is incorrect
(b) Position of voltmeter is incorrect
(c) Terminals of voltmeter are wrongly connected
(d) Terminals of ammeter are wrongly connected.

Answer: A

Question. In a voltmeter there are 20 divisions between 0 mark and 0.5 mark. The least count of the voltmeter is
(a) 0.020 V
(b) 0.025 V
(c) 0.050 V
(d) 0.250 V

Answer: B

Question. Which of the circuit components in the following circuit diagram are connected in parallel ? 

(a) R₁ and R₂ only
(b) R₂ and V only
(c) R₁ and V only
(d) R₁, R₂ and V only.

Answer: D

Question. For the circuit diagram shown in figures I and II voltmeter reading would be 

(a) 2 V in circuit (I) and 0 V in circuit (II)
(b) 0 V in both circuits
(c) 2 V in both circuits
(d) 0 V in circuit (I) and 2 V in circuit (II).

Answer: D

Question. The following instruments are available in a laboratory
milliammeter A₁ of least count 10 mA and range 0-300 mA
milliammeter A₂ of least count 20 mA and range 0-200 mA
voltmeter V₁ of least count 0.2 V and range 0-5 V
voltmeter V₂ of least count 0.3 V and range 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) milliammeter A₁ and voltmeter V₂
(b) milliammeter A₂ and voltmeter V₁
(c) milliammeter A₁ and voltmeter V₁
(d) milliammeter A₂ and voltmeter V₂

Answer: C